corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
15512270 | 0712.4092 | 2007-12-26 | On the role of Convexity in Isoperimetry, Spectral-Gap and Concentration | We show that for convex domains in Euclidean space, Cheeger's isoperimetric inequality, spectral gap of the Neumann Laplacian, exponential concentration of Lipschitz functions, and the a-priori weakest requirement that Lipschitz functions have \emph{arbitrarily slow} uniform tail-decay, are all quantitatively equivalen... | [
"math.MG",
"math.FA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
120216787 | 0712.4273 | 2007-12-27 | Online EM Algorithm for Latent Data Models | In this contribution, we propose a generic online (also sometimes called adaptive or recursive) version of the Expectation-Maximisation (EM) algorithm applicable to latent variable models of independent observations. Compared to the algorithm of Titterington (1984), this approach is more directly connected to the usual... | [
"stat.CO",
"cs.LG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2083628 | 0712.4166 | 2007-12-27 | Simulation of the matrix Bingham-von Mises-Fisher distribution, with applications to multivariate and relational data | Orthonormal matrices play an important role in reduced-rank matrix approximations and the analysis of matrix-valued data. A matrix Bingham-von Mises-Fisher distribution is a probability distribution on the set of orthonormal matrices that includes linear and quadratic terms, and arises as a posterior distribution in la... | [
"stat.CO",
"stat.ME"
] | null | [
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] | null | null | null |
12090132 | 0712.4288 | 2007-12-27 | Voter Models on Heterogeneous Networks | We study simple interacting particle systems on heterogeneous networks, including the voter model and the invasion process. These are both two-state models in which in an update event an individual changes state to agree with a neighbor. For the voter model, an individual "imports" its state from a randomly-chosen neig... | [
"physics.soc-ph",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1162582 | 0712.4279 | 2007-12-27 | Disjointness is hard in the multi-party number on the forehead model | We show that disjointness requires randomized communication Omega(n^{1/(k+1)}/2^{2^k}) in the general k-party number-on-the-forehead model of complexity. The previous best lower bound for k >= 3 was log(n)/(k-1). Our results give a separation between nondeterministic and randomized multiparty number-on-the-forehead com... | [
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17659983 | 0712.4259 | 2007-12-27 | The skew spectrum of functions on finite groups and their homogeneous spaces | Whenever we have a group acting on a class of functions by translation, the bispectrum offers a principled and lossless way of representing such functions invariant to the action. Unfortunately, computing the bispectrum is often costly and complicated. In this paper we propose a unitarily equivalent, but easier to comp... | [
"math.RT",
"math.GR"
] | null | [
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{
"author_id": "r kondor_1",
"name": "Risi Kondor",
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}
] | null |
10641598 | 0712.4211 | 2007-12-27 | Martingale proofs of many-server heavy-traffic limits for Markovian queues | This is an expository review paper illustrating the ``martingale method'' for proving many-server heavy-traffic stochastic-process limits for queueing models, supporting diffusion-process approximations. Careful treatment is given to an elementary model -- the classical infinite-server model $M/M/\infty$, but models wi... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12209553 | 0712.4219 | 2007-12-27 | On the optimality of the standard genetic code: the role of stop codons | The genetic code markup is the assignment of stop codons. The standard genetic code markup ensures the maximum possible stability of genetic information with respect to two fault classes: frameshift and nonsense mutations. There are only 528 (about 1,3% of total number) optimal markups in the set of markups having 3 st... | [
"q-bio.PE"
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{
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"author_id": "a podlazov_0",
"name": "Andrew Podlazov",
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5749812 | 0712.4372 | 2007-12-28 | Source breakup dynamics in Au+Au Collisions at sqrt(s_NN)=200 GeV via three-dimensional two-pion source imaging | A three-dimensional (3D) correlation function obtained from mid-rapidity, low pT pion pairs in central Au+Au collisions at sqrt(s_NN)=200 GeV is studied. The extracted model-independent source function indicates a long range tail in the directions of the pion pair transverse momentum (out) and the beam (long). Model co... | [
"nucl-ex"
] | null | [
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"name": "Christine [\"A.\"] Aidala",
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119207648 | 0801.0013 | 2007-12-28 | SOLIS Vector Spectromagnetograph: status and science | The Vector Spectromagnetograph (VSM) instrument has been recording photospheric and chromospheric magnetograms daily since August 2003. Full-disk photospheric vector magnetograms are observed at least weekly and, since November 2006, area-scans of active regions daily. Quick-look vector magnetic images, plus X3D and FI... | [
"astro-ph"
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"author_id": "c keller_1",
"name": "Christoph [\"U.\"] Keller",
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118631335 | 0712.4404 | 2007-12-28 | On Normal Modes of a Warped Throat | As shown in arXiv:hep-th/0405282, the warped deformed conifold has two bosonic massless modes, a pseudoscalar and a scalar, that are dual to the phase and the modulus of the baryonic condensates in the cascading gauge theory. We reconsider the scalar mode sector, mixing fluctuations of the NS-NS 2-form and the metric, ... | [
"hep-th"
] | null | [
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... | [
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"name": "Anatoly Dymarsky",
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9354976 | 0801.0393 | 2007-12-29 | Old and new examples of scale functions for spectrally negative Levy processes | We give a review of the state of the art with regard to the theory of scale functions for spectrally negative Levy processes. From this we introduce a general method for generating new families of scale functions. Using this method we introduce a new family of scale functions belonging to the Gaussian Tempered Stable C... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17843885 | 0801.0045 | 2007-12-29 | SUSY Les Houches Accord 2 | The Supersymmetry Les Houches Accord (SLHA) provides a universal set of conventions for conveying spectral and decay information for supersymmetry analysis problems in high energy physics. Here, we propose extensions of the conventions of the first SLHA to include various generalisations: the minimal supersymmetric sta... | [
"hep-ph"
] | null | [
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] | [] | [
{
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"name": "Csaba Balázs",
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6932277 | 0801.0061 | 2007-12-29 | Security for Wiretap Networks via Rank-Metric Codes | The problem of securing a network coding communication system against a wiretapper adversary is considered. The network implements linear network coding to deliver $n$ packets from source to each receiver, and the wiretapper can eavesdrop on $\mu$ arbitrarily chosen links. A coding scheme is proposed that can achieve t... | [
"cs.IT",
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"math.IT"
] | null | [
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] | null | null | null |
17049704 | 0801.0134 | 2007-12-30 | Observational Evidence for Tidal Interaction in Close Binary Systems | This paper reviews the rich corpus of observational evidence for tidal effects in short-period binaries. We review the evidence for ellipsoidal variability and for the observational manifestation of apsidal motion in eclipsing binaries. Among the long-term effects, circularization was studied the most, and a transition... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10496335 | 0801.0168 | 2007-12-30 | Elastic Maps and Nets for Approximating Principal Manifolds and Their Application to Microarray Data Visualization | Principal manifolds are defined as lines or surfaces passing through ``the middle'' of data distribution. Linear principal manifolds (Principal Components Analysis) are routinely used for dimension reduction, noise filtering and data visualization. Recently, methods for constructing non-linear principal manifolds were ... | [
"physics.data-an",
"physics.bio-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14112420 | 0801.0176 | 2007-12-31 | PCA Beyond The Concept of Manifolds: Principal Trees, Metro Maps, and Elastic Cubic Complexes | Multidimensional data distributions can have complex topologies and variable local dimensions. To approximate complex data, we propose a new type of low-dimensional ``principal object'': a principal cubic complex. This complex is a generalization of linear and non-linear principal manifolds and includes them as a parti... | [
"physics.data-an",
"physics.bio-ph"
] | null | [
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] | null | null | null |
788275 | 0801.0155 | 2007-12-31 | Resolvent of Large Random Graphs | We analyze the convergence of the spectrum of large random graphs to the spectrum of a limit infinite graph. We apply these results to graphs converging locally to trees and derive a new formula for the Stieljes transform of the spectral measure of such graphs. We illustrate our results on the uniform regular graphs, E... | [
"math.PR",
"math-ph",
"math.MP"
] | null | [
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] | null | null | null |
25208193 | 0801.0220 | 2007-12-31 | J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions | Yields for J/psi production in Cu+Cu collisions at sqrt (s_NN)= 200 GeV have been measured by the PHENIX experiment over the rapidity range |y| < 2.2 at transverse momenta from 0 to beyond 5 GeV/c. The invariant yield is obtained as a function of rapidity, transverse momentum and collision centrality, and compared with... | [
"nucl-ex"
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] | [] | [
{
"author_id": "a adare_1",
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{
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"name": "S. Afanasiev",
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6610387 | 0801.0249 | 2007-12-31 | A mathematical formalism for agent-based modeling | Many complex systems can be modeled as multiagent systems in which the constituent entities (agents) interact with each other. The global dynamics of such a system is determined by the nature of the local interactions among the agents. Since it is difficult to formally analyze complex multiagent systems, they are often... | [
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{
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] | [
{
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"name": "Reinhard [\"C.\"] Laubenbacher",
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{
"author_id": "a jarrah_0",
"name": "Abdul [\"Salam\"] Jarrah",
"publication_history": null,
"h_index":... | null |
1488613 | 0801.0059 | 2007-12-31 | The Maximal Probability that k-wise Independent Bits are All 1 | A k-wise independent distribution on n bits is a joint distribution of the bits such that each k of them are independent. In this paper we consider k-wise independent distributions with identical marginals, each bit has probability p to be 1. We address the following question: how high can the probability that all the ... | [
"math.PR",
"math.CO"
] | null | [
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] | [] | [
{
"author_id": "r peled_1",
"name": "Ron Peled",
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{
"author_id": "a yadin_1",
"name": "Ariel Yadin",
"publication_history": null,
"h_index": null,
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"num_ci... | null |
7996855 | 0801.0232 | 2007-12-31 | Does intelligence imply contradiction? | Contradiction is often seen as a defect of intelligent systems and a dangerous limitation on efficiency. In this paper we raise the question of whether, on the contrary, it could be considered a key tool in increasing intelligence in biological structures. A possible way of answering this question in a mathematical con... | [
"cs.AI",
"cs.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p frosini_1",
"name": "Patrizio Frosini",
"publication_history": null,
"h_index": null,
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}
] | null |
1388921 | 0801.0087 | 2007-12-31 | Evolution of the electronic excitation spectrum with strongly diminishing hole-density in superconducting Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta} | A complete knowledge of its excitation spectrum could greatly benefit efforts to understand the unusual form of superconductivity occurring in the lightly hole-doped copper-oxides. Here we use tunnelling spectroscopy to measure the T\to 0 spectrum of electronic excitations N(E) over a wide range of hole-density p in su... | [
"cond-mat.supr-con"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15768582 | 0804.1703 | 2008-01-01 | A public turbulence database cluster and applications to study Lagrangian evolution of velocity increments in turbulence | A public database system archiving a direct numerical simulation (DNS) data set of isotropic, forced turbulence is described in this paper. The data set consists of the DNS output on $1024^3$ spatial points and 1024 time-samples spanning about one large-scale turn-over timescale. This complete $1024^4$ space-time histo... | [
"physics.flu-dyn",
"physics.comp-ph"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
115167593 | 0801.0297 | 2008-01-01 | Walk versus Wait: The Lazy Mathematician Wins | In this recreational mathematics note, we address a simple, yet instructive question: Justin has to travel a distance of d miles along a bus route. Along this route, there are n bus stops i, each spaced at a distance of d_i from the starting point. At each bus stop, Justin is faced with a choice: to walk or to wait. If... | [
"math.HO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j chen_4",
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{
"author_id": "s kominers_1",
"name": "Scott [\"Duke\"] Kominers",
"publication_history": null,
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"num_papers"... | null |
3236027 | 0801.0287 | 2008-01-01 | Data Tables for Lorentz and CPT Violation | This work tabulates measured and derived values of coefficients for Lorentz and CPT violation in the Standard-Model Extension. Summary tables are extracted listing maximal attained sensitivities in the matter, photon, neutrino, and gravity sectors. Tables presenting definitions and properties are also compiled. | [
"hep-ph",
"astro-ph",
"gr-qc",
"hep-ex",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
208849912 | 0801.0318 | 2008-01-01 | SUSY@LHC.CERN.CH | I discuss the program of work towards discoveries at the LHC, and I include seeds for orientation and navigation in the parameter space given the foreseen multitude of excesses at startup. | [
"hep-ex"
] | null | [
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{
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{
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{
"author_id": "m spiropulu_1",
"name": "Maria Spiropulu",
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}
] | null |
119200062 | 0801.0435 | 2008-01-02 | Efficient method to calculate total energies of large nanoclusters | We present an approach to calculate total energies of nanoclusters based on first principles estimates. For very large clusters the total energy can be separated into surface, edge and corner energies, in addition to bulk contributions. Using this separation and estimating these with direct, first principles calculatio... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m yu_32",
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"name": "Rampi Ramprasad",
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3265406 | 0801.0452 | 2008-01-02 | Sum Capacity of the Gaussian Interference Channel in the Low Interference Regime | New upper bounds on the sum capacity of the two-user Gaussian interference channel are derived. Using these bounds, it is shown that treating interference as noise achieves the sum capacity if the interference levels are below certain thresholds. | [
"cs.IT",
"math.IT"
] | null | [
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{
"author_id": "v annapureddy_1",
"name": "V. [\"Sreekanth\"] Annapureddy",
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{
"author_id": "v veeravalli_1",
"name": "Venugopal [\"V.\"] Veeravalli",
"publication_history": null,
"h... | null |
56153 | 0801.0352 | 2008-01-02 | The price of certainty: "waterslide curves" and the gap to capacity | The classical problem of reliable point-to-point digital communication is to achieve a low probability of error while keeping the rate high and the total power consumption small. Traditional information-theoretic analysis uses `waterfall' curves to convey the revolutionary idea that unboundedly low probabilities of bit... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
209338 | 0801.0341 | 2008-01-02 | Exactness of Belief Propagation for Some Graphical Models with Loops | It is well known that an arbitrary graphical model of statistical inference defined on a tree, i.e. on a graph without loops, is solved exactly and efficiently by an iterative Belief Propagation (BP) algorithm convergent to unique minimum of the so-called Bethe free energy functional. For a general graphical model on a... | [
"cond-mat.stat-mech",
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"cs.AI",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
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16363963 | 0801.0406 | 2008-01-02 | Phase Transition in Sexual Reproduction and Biological Evolution | Using Monte Carlo model of biological evolution we have discovered that populations can switch between two different strategies of their genomes' evolution; Darwinian purifying selection and complementing the haplotypes. The first one is exploited in the large panmictic populations while the second one in the small hig... | [
"q-bio.PE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m zawierta_0",
"name": "Marta Zawierta",
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{
"author_id": "w waga_0",
"name": "Wojciech Waga",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
55431457 | 0801.0342 | 2008-01-02 | Wavefunction preparation and resampling using a quantum computer | We present an algorithm that prepares multidimensional Gaussian wavefunctions on qubit arrays and an application of such wavefunctions to multidimensional resampling, a technique useful in quantum digital simulation. | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8908993 | 0801.0390 | 2008-01-02 | Staring at Economic Aggregators through Information Lenses | It is hard to exaggerate the role of economic aggregators -- functions that summarize numerous and / or heterogeneous data -- in economic models since the early XX$^{th}$ century. In many cases, as witnessed by the pioneering works of Cobb and Douglas, these functions were information quantities tailored to economic th... | [
"cs.IT",
"cs.LG",
"math.IT",
"math.OC"
] | null | [
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{
"author_id": "r nock_1",
"name": "Richard Nock",
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{
"author_id": "n sanz_1",
"name": "Nicolas Sanz",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_... | null |
8613990 | 0801.0518 | 2008-01-03 | Inhomogeneous backflow transformations in quantum Monte Carlo calculations | An inhomogeneous backflow transformation for many-particle wave functions is presented and applied to electrons in atoms, molecules, and solids. We report variational and diffusion quantum Monte Carlo VMC and DMC energies for various systems and study the computational cost of using backflow wave functions. We find tha... | [
"physics.comp-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9052757 | 0801.0579 | 2008-01-03 | Discrete bidding games | We study variations on combinatorial games in which, instead of alternating moves, the players bid with discrete bidding chips for the right to determine who moves next. We consider both symmetric and partisan games, and explore differences between discrete bidding games and Richman games, which allow real-valued biddi... | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1193 | 0801.0514 | 2008-01-03 | New results on Noncommutative and Commutative Polynomial Identity Testing | Using ideas from automata theory we design a new efficient (deterministic) identity test for the \emph{noncommutative} polynomial identity testing problem (first introduced and studied in \cite{RS05,BW05}). We also apply this idea to the reconstruction of black-box noncommuting algebraic branching programs. Assuming th... | [
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v arvind_2",
"name": "Vikraman Arvind",
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{
"author_id": "p mukhopadhyay_3",
"name": "Partha Mukhopadhyay",
"publication_history": null,
"h_index": null,
"num_pape... | null |
26483420 | 0801.0644 | 2008-01-04 | Correlation of CMB with large-scale structure: II. Weak lensing | We investigate the correlation of gravitational lensing of the cosmic microwave background (CMB) with several tracers of large-scale structure, including luminous red galaxies (LRGs), quasars, and radio sources. The lensing field is reconstructed based on the CMB maps from the Wilkinson Microwave Anisotropy Probe (WMAP... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c hirata_1",
"name": "Christopher [\"M.\"] Hirata",
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{
"author_id": "s ho_6",
"name": "Shirley Ho",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
3005221 | 0801.0753 | 2008-01-04 | Why Y chromosome is shorter and women live longer? | We have used the Penna ageing model to analyze how the differences in evolution of sex chromosomes depend on the strategy of reproduction. In panmictic populations, when females (XX) can freely choose the male partner (XY) for reproduction from the whole population, the Y chromosome accumulates defects and eventually t... | [
"q-bio.PE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p biecek_1",
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{
"author_id": "s cebrat_1",
"name": "Stanislaw Cebrat",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
38383124 | 0801.0642 | 2008-01-04 | Correlation of CMB with large-scale structure: I. ISW Tomography and Cosmological Implications | We cross-correlate large scale structure (LSS) observations from a number of surveys with CMB anisotropies from WMAP to investigate the Integrated Sachs-Wolfe (ISW) effect as a function of redshift, covering z~0.1-2.5. Our main goal is to go beyond reporting detections towards developing a reliable likelihood analysis ... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s ho_6",
"name": "Shirley Ho",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "c hirata_1",
"name": "Christopher [\"M.\"] Hirata",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
15626046 | 0802.1543 | 2008-01-04 | Tidal Evolution of Close-in Extra-Solar Planets | The distribution of eccentricities e of extra-solar planets with semi-major axes a > 0.2 AU is very uniform, and values for e are generally large. For a < 0.2 AU, eccentricities are much smaller (most e < 0.2), a characteristic widely attributed to damping by tides after the planets formed and the protoplanetary gas di... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53124882 | 0801.0872 | 2008-01-06 | Quantum-Gravity Decoherence Effects in Neutrino Oscillations: Expected Constraints from CNGS and J-PARC | Quantum decoherence, the evolution of pure states into mixed states, may be a feature of quantum-gravity models. In most cases, such models lead to fewer neutrinos of all active flavours being detected in a long baseline experiment as compared to three-flavour standard neutrino oscillations. We discuss the potential of... | [
"hep-ph",
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "7102535",
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}
] | [
{
"author_id": "n mavromatos_1",
"name": "Nick [\"E.\"] Mavromatos",
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},
{
"author_id": "a meregaglia_1",
"name": "Anselmo Meregaglia",
"publication_history": null,
"h_index": null,
... | null |
17571531 | 0801.0871 | 2008-01-06 | Spectroscopic ages and metallicities of stellar populations: validation of full spectrum fitting | Fitting whole spectra at intermediate spectral resolution (R = 1000 -- 3000), to derive physical properties of stellar populations, appears as an optimized alternative to methods based on spectrophotometric indices: it uses all the redundant information contained in the signal. This paper addresses the validation of th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
267738 | 0801.1002 | 2008-01-07 | Capacity Bounds for Peak-Constrained Multiantenna Wideband Channels | We derive bounds on the noncoherent capacity of a very general class of multiple-input multiple-output channels that allow for selectivity in time and frequency as well as for spatial correlation. The bounds apply to peak-constrained inputs; they are explicit in the channel's scattering function, are useful for a large... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "1719463",
"num_citations": null
}
] | [
{
"author_id": "u schuster_1",
"name": "Ulrich [\"G.\"] Schuster",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g durisi_1",
"name": "Giuseppe Durisi",
"publication_history": null,
"h_index": null,
"num_pap... | null |
119181326 | 0801.0743 | 2008-01-07 | Two-loop Jet-Function and Jet-Mass for Top Quarks | We compute the two-loop heavy quark jet-function in the heavy quark limit. This is one of the key ingredients in next-to-next-to-leading order (NNLO) and next-to-next-to-leading-log order (NNLL) computations of the invariant mass distribution of top-jets at a future e+e- collider. The shape of the top invariant mass di... | [
"hep-ph",
"hep-th",
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14063056 | 0801.0996 | 2008-01-07 | Hamilton-Pontryagin Integrators on Lie Groups: Introduction and Structure-Preserving Properties | In this paper structure-preserving time-integrators for rigid body-type mechanical systems are derived from a discrete Hamilton-Pontryagin variational principle. From this principle one can derive a novel class of variational partitioned Runge-Kutta methods on Lie groups. Included among these integrators are generaliza... | [
"math.NA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15570507 | 0801.0980 | 2008-01-07 | Imprecise Markov chains and their limit behaviour | When the initial and transition probabilities of a finite Markov chain in discrete time are not well known, we should perform a sensitivity analysis. This can be done by considering as basic uncertainty models the so-called credal sets that these probabilities are known or believed to belong to, and by allowing the pro... | [
"math.PR",
"math.DS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g cooman_1",
"name": "Gert [\"de\"] Cooman",
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},
{
"author_id": "f hermans_1",
"name": "Filip Hermans",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
14941954 | 0801.0739 | 2008-01-07 | Prompt Shocks in the Gas Disk Around a Recoiling Supermassive Black Hole Binary | Supermassive black hole binaries (BHBs) produced in galaxy mergers recoil at the time of their coalescence due to the emission of gravitational waves (GWs). We simulate the response of a thin, 2D disk of collisionless particles, initially on circular orbits around a 10^6 M_sun BHB, to kicks that are either parallel or ... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13609860 | 0801.1063 | 2008-01-07 | Modeling Online Reviews with Multi-grain Topic Models | In this paper we present a novel framework for extracting the ratable aspects of objects from online user reviews. Extracting such aspects is an important challenge in automatically mining product opinions from the web and in generating opinion-based summaries of user reviews. Our models are based on extensions to stan... | [
"cs.IR",
"cs.DB"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
115163394 | 0801.1121 | 2008-01-07 | Decay and Continuity of Boltzmann Equation in Bounded Domains | Boundaries occur naturally in kinetic equations and boundary effects are crucial for dynamics of dilute gases governed by the Boltzmann equation. We develop a mathematical theory to study the time decay and continuity of Boltzmann solutions for four basic types of boundary conditions: inflow, bounce-back reflection, sp... | [
"math.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7048603 | 0801.1095 | 2008-01-07 | Simultaneous analysis of Lasso and Dantzig selector | We exhibit an approximate equivalence between the Lasso estimator and Dantzig selector. For both methods we derive parallel oracle inequalities for the prediction risk in the general nonparametric regression model, as well as bounds on the $\ell_p$ estimation loss for $1\le p\le 2$ in the linear model when the number o... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "14772932",
"num_citations": null
}
] | [
{
"author_id": "p bickel_1",
"name": "Peter [\"J.\"] Bickel",
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},
{
"author_id": "y ritov_1",
"name": "Ya'acov Ritov",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
41113388 | 0801.1078 | 2008-01-07 | Single Transverse Spin Asymmetries of Identified Charged Hadrons in Polarized p+p Collisions at $\sqrt{s}$ = 62.4 GeV | The first measurements of $x_F$-dependent single spin asymmetries of identified charged hadrons, $\pi^{\pm}$, $K^{\pm}$, and protons, from transversely polarized proton-proton collisions at 62.4 GeV at RHIC are presented. The measurements extend to high-$x_F$ ($|x_F|\sim 0.6$) in both the forward and backward direction... | [
"nucl-ex",
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17377899 | 0801.1187 | 2008-01-08 | 3D Lya radiation transfer. II. Fitting the Lyman break galaxy MS 1512-cB58 and implications for Lya emission in high-z starbursts | Using our 3D Lya radiation transfer code, we compute the radiation transfer of Lya and UV continuum photons including dust. Observational constraints on the neutral gas (column density, kinematics, etc.) are taken from other analysis of this object. RESULTS: The observed Lya profile of MS 1512--cB58 is reproduced for t... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
308473 | 0801.1241 | 2008-01-08 | On the iterative decoding of sparse quantum codes | We address the problem of decoding sparse quantum error correction codes. For Pauli channels, this task can be accomplished by a version of the belief propagation algorithm used for decoding sparse classical codes. Quantum codes pose two new challenges however. Firstly, their Tanner graph unavoidably contain small loop... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
59967 | 0801.1300 | 2008-01-08 | Almost 2-SAT is Fixed-Parameter Tractable | We consider the following problem. Given a 2-CNF formula, is it possible to remove at most $k$ clauses so that the resulting 2-CNF formula is satisfiable? This problem is known to different research communities in Theoretical Computer Science under the names 'Almost 2-SAT', 'All-but-$k$ 2-SAT', '2-CNF deletion', '2-SAT... | [
"cs.DS",
"cs.CG",
"cs.LO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7555123 | 0801.1223 | 2008-01-08 | The c2d Spitzer spectroscopy survey of ices around low-mass young stellar objects, III: CH4 | CH4 is proposed to be the starting point of a rich organic chemistry. Solid CH4 abundances have previously been determined mostly toward high mass star forming regions. Spitzer/IRS now provides a unique opportunity to probe solid CH4 toward low mass star forming regions as well. Infrared spectra from the Spitzer Space ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2638258 | 0801.1326 | 2008-01-08 | Simultaneous measurement of the ratio B(t->Wb)/B(t->Wq) and the top quark pair production cross section with the D0 detector at sqrt(s)=1.96 TeV | We present the first simultaneous measurement of the ratio of branching fractions, R=B(t->Wb)/B(t->Wq), with q being a d, s, or b quark, and the top quark pair production cross section sigma_ttbar in the lepton plus jets channel using 0.9 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV collected with the D0 detector. ... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v abazov_1",
"name": "Victor [\"Mukhamedovich\"] Abazov",
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},
{
"author_id": "b abbott_2",
"name": "B. Abbott",
"publication_history": null,
"h_index": null,
"num_pa... | null |
16486143 | 0909.1148 | 2008-01-08 | Exchangeable lower previsions | We extend de Finetti's [Ann. Inst. H. Poincar\'{e} 7 (1937) 1--68] notion of exchangeability to finite and countable sequences of variables, when a subject's beliefs about them are modelled using coherent lower previsions rather than (linear) previsions. We derive representation theorems in both the finite and countabl... | [
"math.PR",
"math.ST",
"stat.ME",
"stat.TH"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g cooman_1",
"name": "Gert [\"de\"] Cooman",
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},
{
"author_id": "e quaeghebeur_1",
"name": "Erik Quaeghebeur",
"publication_history": null,
"h_index": null,
"num_pap... | null |
59057342 | 0801.1156 | 2008-01-08 | The dark matter environment of the Abell 901/902 supercluster: a weak lensing analysis of the HST STAGES survey | We present a high resolution dark matter reconstruction of the z=0.165 Abell 901/902 supercluster from a weak lensing analysis of the HST STAGES survey. We detect the four main structures of the supercluster at high significance, resolving substructure within and between the clusters. We find that the distribution of d... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12962252 | 0801.1158 | 2008-01-08 | Hierarchical selection of variables in sparse high-dimensional regression | We study a regression model with a huge number of interacting variables. We consider a specific approximation of the regression function under two ssumptions: (i) there exists a sparse representation of the regression function in a suggested basis, (ii) there are no interactions outside of the set of the corresponding ... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p bickel_1",
"name": "Peter [\"J.\"] Bickel",
"publication_history": null,
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},
{
"author_id": "y ritov_1",
"name": "Ya'acov Ritov",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
14535691 | 0801.1184 | 2008-01-08 | GMASS Ultradeep Spectroscopy of Galaxies at 1.4<z<2. II. Superdense passive galaxies: how did they form and evolve ? | We combine ultradeep optical spectroscopy from the GMASS project ("Galaxy Mass Assembly ultradeep Spectroscopic Survey") with GOODS multi-band photometry and HST imaging to study a sample of passive galaxiesat 1.39<z<1.99 selected at 4.5 microns. A stacked spectrum with an equivalent integration time of ~500 hours was ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12293423 | 0801.1257 | 2008-01-08 | Third quantization: a general method to solve master equations for quadratic open Fermi systems | The Lindblad master equation for an arbitrary quadratic system of n fermions is solved explicitly in terms of diagonalization of a 4n x 4n matrix, provided that all Lindblad bath operators are linear in the fermionic variables. The method is applied to the explicit construction of non-equilibrium steady states and the ... | [
"quant-ph",
"cond-mat.stat-mech",
"nlin.SI"
] | null | [
"target.key_reference"
] | null | null | null |
3266267 | 0801.1185 | 2008-01-08 | Capacity of the Discrete-Time AWGN Channel Under Output Quantization | We investigate the limits of communication over the discrete-time Additive White Gaussian Noise (AWGN) channel, when the channel output is quantized using a small number of bits. We first provide a proof of our recent conjecture on the optimality of a discrete input distribution in this scenario. Specifically, we show ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j singh_13",
"name": "Jaspreet Singh",
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},
{
"author_id": "o dabeer_1",
"name": "Onkar Dabeer",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
60435 | 0801.1306 | 2008-01-08 | Capacity Bounds for the Gaussian Interference Channel | The capacity region of the two-user Gaussian Interference Channel (IC) is studied. Three classes of channels are considered: weak, one-sided, and mixed Gaussian IC. For the weak Gaussian IC, a new outer bound on the capacity region is obtained that outperforms previously known outer bounds. The sum capacity for a certa... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119277729 | 0801.1345 | 2008-01-09 | The Physics of Heavy Z' Gauge Bosons | The U(1)' symmetry associated with a possible heavy Z' would have profound implications for particle physics and cosmology. The motivations for such particles in various extensions of the standard model, possible ranges for their masses and couplings, and classes of anomaly-free models are discussed. Present limits fro... | [
"hep-ph",
"hep-ex",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15195790 | 0801.1419 | 2008-01-09 | Core Persistence in Peer-to-Peer Systems: Relating Size to Lifetime | Distributed systems are now both very large and highly dynamic. Peer to peer overlay networks have been proved efficient to cope with this new deal that traditional approaches can no longer accommodate. While the challenge of organizing peers in an overlay network has generated a lot of interest leading to a large numb... | [
"cs.DC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v gramoli_1",
"name": "Vincent Gramoli",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "a kermarrec_1",
"name": "Anne-Marie Kermarrec",
"publication_history": null,
"h_index": null,
"num_paper... | null |
260477021 | 0801.1509 | 2008-01-09 | WASP-4b: a 12th-magnitude transiting hot-Jupiter in the Southern hemisphere | We report the discovery of WASP-4b, a large transiting gas-giant planet with an orbital period of 1.34 days. This is the first planet to be discovered by the SuperWASP-South observatory and CORALIE collaboration and the first planet orbiting a star brighter than 16th magnitude to be discovered in the Southern hemispher... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12227976 | 0801.1508 | 2008-01-09 | STRINGVACUA: A Mathematica Package for Studying Vacuum Configurations in String Phenomenology | We give a simple tutorial introduction to the Mathematica package STRINGVACUA, which is designed to find vacua of string-derived or inspired four-dimensional N=1 supergravities. The package uses powerful algebro-geometric methods, as implemented in the free computer algebra system Singular, but requires no knowledge of... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5866586 | 0801.1653 | 2008-01-10 | Nuclear constraints on the momenta of inertia of neutron stars | Properties and structure of neutron stars are determined by the equation of state (EOS) of neutron-rich stellar matter. While the collective flow and particle production in relativistic heavy-ion collisions have constrained tightly the EOS of symmetric nuclear matter up to about five times the normal nuclear matter den... | [
"astro-ph",
"nucl-ex",
"nucl-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15421306 | 0801.1698 | 2008-01-10 | On exchangeable random variables and the statistics of large graphs and hypergraphs | De Finetti's classical result of [18] identifying the law of an exchangeable family of random variables as a mixture of i.i.d. laws was extended to structure theorems for more complex notions of exchangeability by Aldous [1,2,3], Hoover [41,42], Kallenberg [44] and Kingman [47]. On the other hand, such exchangeable law... | [
"math.PR",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18074041 | 0801.1585 | 2008-01-10 | The Master Space of N=1 Gauge Theories | The full moduli space M of a class of N=1 supersymmetric gauge theories is studied. For gauge theories living on a stack of D3-branes at Calabi-Yau singularities X, M is a combination of the mesonic and baryonic branches, the former being the symmetric product of X. In consonance with the mathematical literature, the s... | [
"hep-th",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
42118064 | 0801.1586 | 2008-01-10 | On the metric character of the quantum Jensen-Shannon divergence | In a recent paper, the generalization of the Jensen Shannon divergence (JSD) in the context of quantum theory has been studied (Phys. Rev. A 72, 052310 (2005)). This distance between quantum states has shown to verify several of the properties required for a good distinguishability measure. Here we investigate the metr... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118554904 | 0801.1531 | 2008-01-10 | Scintillation time dependence and pulse shape discrimination in liquid argon | Using a single-phase liquid argon detector with a signal yield of 4.85 photoelectrons per keV of electronic-equivalent recoil energy (keVee), we measure the scintillation time dependence of both electronic and nuclear recoils in liquid argon down to 5 keVee. We develop two methods of pulse shape discrimination to disti... | [
"nucl-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10728954 | 0801.1557 | 2008-01-10 | Magic angles and cross-hatching instability in hydrogel fracture | The full 2D analysis of roughness profiles of fracture surfaces resulting from quasi-static crack propagation in gelatin gels reveals an original behavior characterized by (i) strong anisotropy with maximum roughness at $V$-independent symmetry-preserving angles, (ii) a sub-critical instability leading, below a critica... | [
"cond-mat.soft"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1369118 | 0801.1544 | 2008-01-10 | Secure Multiparty Quantum Computation with (Only) a Strict Honest Majority | Secret sharing and multiparty computation (also called "secure function evaluation") are fundamental primitives in modern cryptography, allowing a group of mutually distrustful players to perform correct, distributed computations under the sole assumption that some number of them will follow the protocol honestly. This... | [
"quant-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
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{
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},
{
"corpus_id": "8969800",
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}
] | [
{
"author_id": "m ben-or_1",
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},
{
"author_id": "c crépeau_1",
"name": "Claude Crépeau",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
16381536 | 0801.1849 | 2008-01-11 | Metallicity Calibrations and the Mass-Metallicity Relation for Star-Forming Galaxies | (Abridged) We investigate the effect of metallicity calibrations, AGN classification, and aperture covering fraction on the local mass-metallicity (MZ) relation using 27,730 star-forming galaxies from the Sloan Digital Sky Survey (SDSS) Data Release 4. We analyse the SDSS MZ relation with 10 metallicity calibrations, i... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14363257 | 0801.1823 | 2008-01-11 | Solving the Einstein constraint equations on multi-block triangulations using finite element methods | In order to generate initial data for nonlinear relativistic simulations, one needs to solve the Einstein constraints, which can be cast into a coupled set of nonlinear elliptic equations. Here we present an approach for solving these equations on three-dimensional multi-block domains using finite element methods. We i... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "o korobkin_1",
"name": "Oleg Korobkin",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "b aksoylu_0",
"name": "Burak Aksoylu",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
119289721 | 0801.1800 | 2008-01-11 | Collider aspects of flavour physics at high Q | This review presents flavour related issues in the production and decays of heavy states at LHC, both from the experimental side and from the theoretical side. We review top quark physics and discuss flavour aspects of several extensions of the Standard Model, such as supersymmetry, little Higgs model or models with ex... | [
"hep-ph",
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t lari_1",
"name": "Tommaso Lari",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l pape_1",
"name": "Luc Pape",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cita... | null |
17626910 | 0801.1780 | 2008-01-11 | Proximal alternating minimization and projection methods for nonconvex problems. An approach based on the Kurdyka-Lojasiewicz inequality | We study the convergence properties of an alternating proximal minimization algorithm for nonconvex structured functions of the type: $L(x,y)=f(x)+Q(x,y)+g(y)$, where $f:\R^n\rightarrow\R\cup{+\infty}$ and $g:\R^m\rightarrow\R\cup{+\infty}$ are proper lower semicontinuous functions, and $Q:\R^n\times\R^m\rightarrow \R$... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
16663479 | 0801.1740 | 2008-01-11 | Third virial coefficient for 4-arm and 6-arm star polymers | We discuss the computation of the third virial coefficient in polymer systems, focusing on an additional contribution absent in the case of monoatomic fluids. We determine the interpenetration ratio and several quantities that involve the third virial coefficient for star polymers with 4 and 6 arms in the good-solvent ... | [
"cond-mat.soft",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s caracciolo_1",
"name": "Sergio Caracciolo",
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{
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"name": "Bortolo [\"Matteo\"] Mognetti",
"publication_history": null,
"h_index": null,
... | null |
2412544 | 0801.1831 | 2008-01-11 | Dark matter allowed scenarios for Yukawa-unified SO(10) SUSY GUTs | Simple supersymmetric grand unified models based on the gauge group SO(10) require --in addition to gauge and matter unification-- the unification of t-b-\tau Yukawa couplings. Yukawa unification, however, only occurs for very special values of the soft SUSY breaking parameters. We perform a search using a Markov Chain... | [
"hep-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
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{
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{
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},
{
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}
] | [
{
"author_id": "h baer_1",
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},
{
"author_id": "s kraml_1",
"name": "Sabine Kraml",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_... | null |
119240523 | 0801.1751 | 2008-01-11 | Exact solution of the Landau-Lifshitz equation in a plane wave | The Landau-Lifshitz form of the Lorentz-Abraham-Dirac equation in the presence of a plane wave of arbitrary shape and polarization is solved exactly and in closed form. The explicit solution is presented in the particular, paradigmatic cases of a constant crossed field and of a monochromatic wave with circular and with... | [
"physics.optics",
"physics.class-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3263565 | 0801.1987 | 2008-01-13 | A Nearly Linear-Time PTAS for Explicit Fractional Packing and Covering Linear Programs | We give an approximation algorithm for packing and covering linear programs (linear programs with non-negative coefficients). Given a constraint matrix with n non-zeros, r rows, and c columns, the algorithm computes feasible primal and dual solutions whose costs are within a factor of 1+eps of the optimal cost in time ... | [
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11253392 | 0801.2178 | 2008-01-14 | Gamma-ray emission from the solar halo and disk: a study with EGRET data | Context: The Sun has recently been predicted to be an extended source of gamma-ray emission, produced by inverse-Compton (IC) scattering of cosmic-ray (CR) electrons on the solar radiation field. The emission was predicted to be extended and a confusing foreground for the diffuse extragalactic background even at large ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1354912 | 0801.2101 | 2008-01-14 | Thermal fracture as a framework for quasi-static crack propagation | We address analytically and numerically the problem of crack path prediction in the model system of a crack propagating under thermal loading. We show that one can explain the instability from a straight to a wavy crack propagation by using only the principle of local symmetry and the Griffith criterion. We then argue ... | [
"cond-mat.mtrl-sci",
"cond-mat.other",
"nlin.PS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11950714 | 0801.2034 | 2008-01-14 | On the Boundedness of the Support of Optimal Input Measures for Rayleigh Fading Channels | We consider transmission over a wireless multiple antenna communication system operating in a Rayleigh flat fading environment with no channel state information at the receiver and the transmitter with coherence time T=1. We show that, subject to the average power constraint, the support of the capacity achieving input... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17412517 | 0801.2250 | 2008-01-15 | On Wasserstein geometry of the space of Gaussian measures | The space of Gaussian measures on a Euclidean space is geodesically convex in the $L^2$-Wasserstein space. This space is a finite dimensional manifold since Gaussian measures are parameterized by means and covariance matrices. By restricting to the space of Gaussian measures inside the $L^2$-Wasserstein space, we manag... | [
"math.DG",
"math.PR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a takatsu_1",
"name": "Asuka Takatsu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
10363260 | 0801.2286 | 2008-01-15 | Adjoint Computation for Hypersurfaces Using Formal Desingularizations | We show how to use formal desingularizations (defined earlier by the first author) in order to compute the global sections (also called adjoints) of twisted pluricanonical sheaves. These sections define maps that play an important role in the birational classification of schemes. | [
"math.AG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t beck_2",
"name": "Tobias Beck",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "j schicho_1",
"name": "Josef Schicho",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
15219847 | 0801.2242 | 2008-01-15 | Information Spectrum Approach to Second-Order Coding Rate in Channel Coding | Second-order coding rate of channel coding is discussed for general sequence of channels. The optimum second-order transmission rate with a constant error constraint $\epsilon$ is obtained by using the information spectrum method. We apply this result to the discrete memoryless case, the discrete memoryless case with a... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
981112 | 0801.2233 | 2008-01-15 | Analysis of Non-binary Hybrid LDPC Codes | In this paper, we analyse asymptotically a new class of LDPC codes called Non-binary Hybrid LDPC codes, which has been recently introduced. We use density evolution techniques to derive a stability condition for hybrid LDPC codes, and prove their threshold behavior. We study this stability condition to conclude on asym... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "3265482",
"num_citations": null
},
{
"corpus_id": "7553133",
"num_citations": null
}
] | [
{
"author_id": "l sassatelli_1",
"name": "Lucile Sassatelli",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d declercq_1",
"name": "David Declercq",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
51767817 | 0801.2277 | 2008-01-15 | Massive stars exploding in a He-rich circumstellar medium. I. Type Ibn (SN 2006jc-like) events | We present new spectroscopic and photometric data of the type Ibn supernovae 2006jc, 2000er and 2002ao. We discuss the general properties of this recently proposed supernova family, which also includes SN 1999cq. The early-time monitoring of SN 2000er traces the evolution of this class of objects during the first few d... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14867465 | 0801.2348 | 2008-01-15 | Scalar field cosmological models with finite scale factor singularities | We construct a scalar field based cosmological model, possessing a cosmological singularity characterized by a finite value of the cosmological radius and an infinite scalar curvature. Using the methods of the qualitative theory of differential equations, we give a complete description of the cosmological evolutions in... | [
"gr-qc",
"astro-ph",
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f cannata_1",
"name": "Francesco Cannata",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a kamenshchik_1",
"name": "Alexander [\"Yu.\"] Kamenshchik",
"publication_history": null,
"h_index": null,... | null |
63002 | 0801.2323 | 2008-01-15 | Decentralized Two-Hop Opportunistic Relaying With Limited Channel State Information | A network consisting of $n$ source-destination pairs and $m$ relays is considered. Focusing on the large system limit (large $n$), the throughput scaling laws of two-hop relaying protocols are studied for Rayleigh fading channels. It is shown that, under the practical constraints of single-user encoding-decoding scheme... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "1727",
"num_citations": null
}
] | [
{
"author_id": "s cui_5",
"name": "Shengshan Cui",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a haimovich_2",
"name": "Alexander [\"M.\"] Haimovich",
"publication_history": null,
"h_index": null,
"num_pap... | null |
18852988 | 0801.2333 | 2008-01-15 | A new form of governing equations of fluids arising from Hamilton's principle | A new form of governing equations is derived from Hamilton's principle of least action for a constrained Lagrangian, depending on conserved quantities and their derivatives with respect to the time-space. This form yields conservation laws both for non-dispersive case (Lagrangian depends only on conserved quantities) a... | [
"physics.flu-dyn",
"math-ph",
"math.GM",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
265099627 | 0801.2480 | 2008-01-16 | Asynchronous Iterative Waterfilling for Gaussian Frequency-Selective Interference Channels | This paper considers the maximization of information rates for the Gaussian frequency-selective interference channel, subject to power and spectral mask constraints on each link. To derive decentralized solutions that do not require any cooperation among the users, the optimization problem is formulated as a static non... | [
"cs.IT",
"cs.GT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g scutari_1",
"name": "Gesualdo Scutari",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d palomar_1",
"name": "Daniel [\"Pérez\"] Palomar",
"publication_history": null,
"h_index": null,
"num_... | null |
460267 | 0801.2461 | 2008-01-16 | Quadratic Form Expansions for Unitaries | We introduce techniques to analyze unitary operations in terms of quadratic form expansions, a form similar to a sum over paths in the computational basis when the phase contributed by each path is described by a quadratic form over $\mathbb R$. We show how to relate such a form to an entangled resource akin to that of... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2278083 | 0801.2566 | 2008-01-16 | Asymptotic dynamics of attractive-repulsive swarms | We classify and predict the asymptotic dynamics of a class of swarming models. The model consists of a conservation equation in one dimension describing the movement of a population density field. The velocity is found by convolving the density with a kernel describing attractive-repulsive social interactions. The kern... | [
"q-bio.PE",
"nlin.AO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9390742 | 0801.2456 | 2008-01-16 | Coding on countably infinite alphabets | This paper describes universal lossless coding strategies for compressing sources on countably infinite alphabets. Classes of memoryless sources defined by an envelope condition on the marginal distribution provide benchmarks for coding techniques originating from the theory of universal coding over finite alphabets. W... | [
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10499605 | 0801.2418 | 2008-01-16 | Cryptanalysis of the Hillery-Buzek-Berthiaume quantum secret-sharing protocol | The participant attack is the most serious threat for quantum secret-sharing protocols. We present a method to analyze the security of quantum secret-sharing protocols against this kind of attack taking the scheme of Hillery, Buzek, and Berthiaume (HBB) [Phys. Rev. A 59 1829 (1999)] as an example. By distinguishing bet... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15758746 | 0801.2626 | 2008-01-17 | Over-populated Tails for conservative-in-the-mean Inelastic Maxwell Models | We introduce and discuss spatially homogeneous Maxwell-type models of the nonlinear Boltzmann equation undergoing binary collisions with a random component. The random contribution to collisions is such that the usual collisional invariants of mass, momentum and energy do not hold pointwise, even if they all hold in th... | [
"math.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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