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13997630
0801.2602
2008-01-17
Pulsar Wind Nebulae in the Chandra Era
Pulsar winds shocked in the ambient medium produce spectacular nebulae observable from the radio through gamma-rays. The shape and the spectrum of a pulsar wind nebula (PWN) depend on the angular distribution, magnetization and energy spectrum of the wind streaming from the pulsar magnetosphere, as well as on the pulsa...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17945794
0801.2964
2008-01-17
Vortex Splitting in Subcritical Nonlinear Schrodinger Equation
Vortices and axisymmetric vortex rings are considered in the framework of the subcritical nonlinear Schrodinger equations. The higher order nonlinearity present in such systems models many-body interactions in superfluid systems and allows one to study the effects of negative pressure on vortex dynamics. We find the cr...
[ "cond-mat.other", "physics.flu-dyn" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n berloff_1", "name": "Natalia [\"G.\"] Berloff", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
3231282
0801.2748
2008-01-17
A greedy approach to sparse canonical correlation analysis
We consider the problem of sparse canonical correlation analysis (CCA), i.e., the search for two linear combinations, one for each multivariate, that yield maximum correlation using a specified number of variables. We propose an efficient numerical approximation based on a direct greedy approach which bounds the correl...
[ "stat.CO", "stat.ME" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17692230
0801.2729
2008-01-17
Classification of solutions to the higher order Liouville's equation on R^{2m}
We classify the solutions to the equation (- \Delta)^m u=(2m-1)!e^{2mu} on R^{2m} giving rise to a metric g=e^{2u}g_{R^{2m}} with finite total $Q$-curvature in terms of analytic and geometric properties. The analytic conditions involve the growth rate of u and the asymptotic behaviour of \Delta u(x) as |x|\to \infty. A...
[ "math.AP", "math.DG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16386425
0801.2800
2008-01-18
A preferential attachment model with Poisson growth for scale-free networks
We propose a scale-free network model with a tunable power-law exponent. The Poisson growth model, as we call it, is an offshoot of the celebrated model of Barab\'{a}si and Albert where a network is generated iteratively from a small seed network; at each step a node is added together with a number of incident edges pr...
[ "stat.AP" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "p sheridan_1", "name": "Paul Sheridan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y yagahara_0", "name": "Yuichi Yagahara", "publication_history": null, "h_index": null, "num_papers": nul...
null
18705897
0801.2952
2008-01-18
Rotating trapped Bose-Einstein condensates
After reviewing the ideal Bose-Einstein gas in a box and in a harmonic trap, I discuss the effect of interactions on the formation of a Bose-Einstein condensate (BEC), along with the dynamics of small-amplitude perturbations (the Bogoliubov equations). When the condensate rotates with angular velocity Omega, one or sev...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18365757
0801.2969
2008-01-19
A Search for sub-km KBOs with the Method of Serendipitous Stellar Occultations
The results of a search for sub-km Kuiper Belt Objects (KBOs) with the method of serendipitous stellar occultations are reported. Photometric time series were obtained on the 1.8m telescope at the Dominion Astrophysical Observatory (DAO) in Victoria, BC, and were analyzed for the presence of occultation events. Observa...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9444729
0801.3007
2008-01-19
Classification of arrayCGH data using a fused SVM
Motivation: Array-based comparative genomic hybridization (arrayCGH) has recently become a popular tool to identify DNA copy number variations along the genome. These profiles are starting to be used as markers to improve prognosis or diagnosis of cancer, which implies that methods for automated supervised classificati...
[ "q-bio.GN" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7121199
0801.3001
2008-01-19
Strategic Execution in the Presence of an Uninformed Arbitrageur
We consider a trader who aims to liquidate a large position in the presence of an arbitrageur who hopes to profit from the trader's activity. The arbitrageur is uncertain about the trader's position and learns from observed price fluctuations. This is a dynamic game with asymmetric information. We present an algorithm ...
[ "math.OC", "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11014749
0801.3088
2008-01-20
On Steepest-Descent-Kaczmarz Methods for Regularizing Systems of Nonlinear Ill-posed Equations
We investigate modified steepest descent methods coupled with a loping Kaczmarz strategy for obtaining stable solutions of nonlinear systems of ill-posed operator equations. We show that the proposed method is a convergent regularization method. Numerical tests are presented for a linear problem related to photoacousti...
[ "math.NA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10542
0801.3112
2008-01-20
The Two User Gaussian Compound Interference Channel
We introduce the two user finite state compound Gaussian interference channel and characterize its capacity region to within one bit. The main contributions involve both novel inner and outer bounds. The inner bound is multilevel superposition coding, but the decoding of the levels is opportunistic, depending on the ch...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a raja_2", "name": "Adnan Raja", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v prabhakaran_1", "name": "Vinod [\"M.\"] Prabhakaran", "publication_history": null, "h_index": null, "num_paper...
null
1223450
0801.3083
2008-01-20
Fixation and consensus times on a network: a unified approach
We investigate a set of stochastic models of biodiversity, population genetics, language evolution and opinion dynamics on a network within a common framework. Each node has a state, 0 < x_i < 1, with interactions specified by strengths m_{ij}. For any set of m_{ij} we derive an approximate expression for the mean time...
[ "cond-mat.stat-mech", "physics.soc-ph", "q-bio.QM" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g baxter_0", "name": "Gareth [\"John\"] Baxter", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r blythe_1", "name": "Richard [\"A.\"] Blythe", "publication_history": null, "h_index": null, "n...
null
263798092
0801.3141
2008-01-21
Quantum Forbidden-Interval Theorems for Stochastic Resonance
We extend the classical forbidden-interval theorems for a stochastic-resonance noise benefit in a nonlinear system to a quantum-optical communication model and a continuous-variable quantum key distribution model. Each quantum forbidden-interval theorem gives a necessary and sufficient condition that determines whether...
[ "quant-ph", "nlin.CD" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119381884", "num_citations": null } ]
[ { "author_id": "m wilde_2", "name": "Mark [\"M.\"] Wilde", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b kosko_1", "name": "Bart Kosko", "publication_history": null, "h_index": null, "num_papers": null, ...
null
11676824
0801.3199
2008-01-21
Descent methods for Nonnegative Matrix Factorization
In this paper, we present several descent methods that can be applied to nonnegative matrix factorization and we analyze a recently developped fast block coordinate method called Rank-one Residue Iteration (RRI). We also give a comparison of these different methods and show that the new block coordinate method has bett...
[ "cs.NA", "cs.IR", "math.OC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14926223
0801.3234
2008-01-21
Including stereoscopic information in the reconstruction of coronal magnetic fields
We present a method to include stereoscopic information about the three dimensional structure of flux tubes into the reconstruction of the coronal magnetic field. Due to the low plasma beta in the corona we can assume a force free magnetic field, with the current density parallel to the magnetic field lines. Here we us...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14132568
0801.3230
2008-01-21
A ~5 M_earth Super-Earth Orbiting GJ 436?: The Power of Near-Grazing Transits
Most of the presently identified exoplanets have masses similar to that of Jupiter and therefore are assumed to be gaseous objects. With the ever-increasing interest in discovering lower-mass planets, several of the so-called super-Earths (1 M_earth<M<10 M_earth), which are predicted to be rocky, have already been foun...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15186291
0801.3270
2008-01-21
Systematic effects on dark energy from 3D weak shear
We present an investigation into the potential effect of systematics inherent in multi-band wide field surveys on the dark energy equation of state determination for two 3D weak lensing methods. The weak lensing methods are a geometric shear-ratio method and 3D cosmic shear. The analysis here uses an extension of the F...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
[ { "corpus_id": "119336511", "num_citations": null }, { "corpus_id": "119517166", "num_citations": null }, { "corpus_id": "119473238", "num_citations": null } ]
[ { "author_id": "t kitching_1", "name": "Thomas [\"D.\"] Kitching", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a taylor_9", "name": "Andy [\"N.\"] Taylor", "publication_history": null, "h_index": null, "nu...
null
14055947
0801.3291
2008-01-21
A classification of symmetric polynomials of infinite variables -- a construction of Abelian and non-Abelian quantum Hall states
Classification of complex wave functions of infinite variables is an important problem since it is related to the classification of possible quantum states of matter. In this paper, we propose a way to classify symmetric polynomials of infinite variables using the pattern of zeros of the polynomials. Such a classificat...
[ "cond-mat.str-el", "cond-mat.mes-hall", "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18371733
0801.3203
2008-01-21
Time discretization and Markovian iteration for coupled FBSDEs
In this paper we lay the foundation for a numerical algorithm to simulate high-dimensional coupled FBSDEs under weak coupling or monotonicity conditions. In particular, we prove convergence of a time discretization and a Markovian iteration. The iteration differs from standard Picard iterations for FBSDEs in that the d...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12063036
0801.3477
2008-01-22
Mastering the Master Space
Supersymmetric gauge theories have an important but perhaps under-appreciated notion of a master space, which controls the full moduli space. For world-volume theories of D-branes probing a Calabi-Yau singularity X the situation is particularly illustrative. In the case of one physical brane, the master space F is the ...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16698461
0801.3273
2008-01-22
Reconciling the Metallicity Distributions of Gamma-ray Burst, Damped Lyman-alpha, and Lyman-break Galaxies at z=3
We test the hypothesis that the host galaxies of long-duration gamma-ray bursts (GRBs) as well as quasar-selected damped Lyman-alpha (DLA) systems are drawn from the population of UV-selected star-forming, high-z galaxies (generally referred to as Lyman-break galaxies). Specifically, we compare the metallicity distribu...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119485171", "num_citations": null }, { "corpus_id": "119543487", "num_citations": null }, { "corpus_id": "11978574", "num_citations": null } ]
[ { "author_id": "j fynbo_1", "name": "Johan [\"Peter\",\"Uldall\"] Fynbo", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j prochaska_1", "name": "Jason [\"Xavier\"] Prochaska", "publication_history": null, "h_ind...
null
5074400
0801.3327
2008-01-22
The Evolution of NGC 7027 at Radio Frequencies: A New Determination of the Distance and Core Mass
We present the results of a 25-year program to monitor the radio flux evolution of the planetary nebula NGC7027. We find significant evolution of the spectral flux densities. The flux density at 1465 MHz, where the nebula is optically thick, is increasing at a rate of 0.251+-0.015 % per year, caused by the expansion of...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
55245308
0801.3297
2008-01-22
A Measurement of the Rate of type-Ia Supernovae at Redshift $z\approx$ 0.1 from the First Season of the SDSS-II Supernova Survey
We present a measurement of the rate of type Ia supernovae (SNe Ia) from the first of three seasons of data from the SDSS-II Supernova Survey. For this measurement, we include 17 SNe Ia at redshift $z\le0.12$. Assuming a flat cosmology with $\Omega_m = 0.3=1-\Omega_\Lambda$, we find a volumetric SN Ia rate of $[2.93^{+...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2107398
0801.3372
2008-01-22
A Geometrical Study of Matching Pursuit Parametrization
This paper studies the effect of discretizing the parametrization of a dictionary used for Matching Pursuit decompositions of signals. Our approach relies on viewing the continuously parametrized dictionary as an embedded manifold in the signal space on which the tools of differential (Riemannian) geometry can be appli...
[ "math.DG", "math.NA", "math.OC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l jacques_1", "name": "Laurent Jacques", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c vleeschouwer_1", "name": "Christophe [\"De\"] Vleeschouwer", "publication_history": null, "h_index": null,...
null
21111113
0801.3650
2008-01-23
Submillimeter Galaxies at z~2: Evidence for Major Mergers & Constraints on Lifetimes, IMF and CO-H2 Conversion Factor
We report sub-arcsecond resolution IRAM PdBI millimeter CO interferometry of four z~2 submillimeter galaxies (SMGs), and sensitive CO (3-2) flux limits toward three z~2 UV-/optically selected star forming galaxies. The new data reveal for the first time spatially resolved CO gas kinematics in the observed SMGs. Two of ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6154643
0801.3625
2008-01-23
On the construction of model Hamiltonians for adiabatic quantum computation and its application to finding low energy conformations of lattice protein models
In this report, we explore the use of a quantum optimization algorithm for obtaining low energy conformations of protein models. We discuss mappings between protein models and optimization variables, which are in turn mapped to a system of coupled quantum bits. General strategies are given for constructing Hamiltonians...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15983807
0801.3586
2008-01-23
Higgs boson searches in CP-conserving and CP-violating MSSM scenarios with the DELPHI detector
This paper presents the final interpretation of the results from DELPHI on the searches for Higgs bosons in the Minimal Supersymmetric extension of the Standard Model (MSSM). A few representative scenarios are considered, that include CP conservation and explicit CP violation in the Higgs sector. The experimental resul...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j abdallah_1", "name": "Jalal Abdallah", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p abreu_1", "name": "Pedro Abreu", "publication_history": null, "h_index": null, "num_papers": null, ...
null
2474300
0801.3624
2008-01-23
Multiparty Communication Complexity of Disjointness
We obtain a lower bound of n^Omega(1) on the k-party randomized communication complexity of the Disjointness function in the `Number on the Forehead' model of multiparty communication when k is a constant. For k=o(loglog n), the bounds remain super-polylogarithmic i.e. (log n)^omega(1). The previous best lower bound fo...
[ "cs.CC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
254335
0801.3526
2008-01-23
Quantized Multimode Precoding in Spatially Correlated Multi-Antenna Channels
Multimode precoding, where the number of independent data-streams is adapted optimally, can be used to maximize the achievable throughput in multi-antenna communication systems. Motivated by standardization efforts embraced by the industry, the focus of this work is on systematic precoder design with realistic assumpti...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "10895494", "num_citations": null } ]
[ { "author_id": "v raghavan_1", "name": "Vasanthan Raghavan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v veeravalli_1", "name": "Venugopal [\"V.\"] Veeravalli", "publication_history": null, "h_index": null, ...
null
1991930
0801.3471
2008-01-23
Black Holes in Higher Dimensions
We review black hole solutions of higher-dimensional vacuum gravity, and of higher-dimensional supergravity theories. The discussion of vacuum gravity is pedagogical, with detailed reviews of Myers-Perry solutions, black rings, and solution-generating techniques. We discuss black hole solutions of maximal supergravity ...
[ "hep-th", "gr-qc" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
394519
0801.3640
2008-01-23
Energy Efficiency in Multi-Hop CDMA Networks: a Game Theoretic Analysis Considering Operating Costs
A game-theoretic analysis is used to study the effects of receiver choice and transmit power on the energy efficiency of multi-hop networks in which the nodes communicate using Direct-Sequence Code Division Multiple Access (DS-CDMA). A Nash equilibrium of the game in which the network nodes can choose their receivers a...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2747544
0801.3654
2008-01-23
A path following algorithm for the graph matching problem
We propose a convex-concave programming approach for the labeled weighted graph matching problem. The convex-concave programming formulation is obtained by rewriting the weighted graph matching problem as a least-square problem on the set of permutation matrices and relaxing it to two different optimization problems: a...
[ "cs.CV", "cs.DM" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10248036
0801.3557
2008-01-23
Large Scale Structures at High Redshift in the GOODS Field
We present a catalogue of overdensities in the GOODS-South field. We find various high density peaks that are embedded in structures diffused on the entire field, up to z ~ 2.5. The slope of their colour-magnitude relation does not show significative evolution with z. We find evidence that galaxies forming these struct...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m castellano_1", "name": "Marco Castellano", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s salimbeni_1", "name": "Sara Salimbeni", "publication_history": null, "h_index": null, "num_papers"...
null
1087214
0801.3754
2008-01-24
Representation of nonnegative convex polynomials
We provide a specific representation of convex polynomials nonnegative on a convex (not necessarily compact) basic closed semi-algebraic subset K of Rn. Namely, they belong to a specific subset of the quadratic module generated by the concave polynomials that define K.
[ "math.AG", "math.OC" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
118039352
0801.3745
2008-01-24
The HST/ACS Coma Cluster Survey: I - Survey Objectives and Design
We describe the HST ACS Coma cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma cluster (Abell 1656). The survey was designed to cover an area of 740 square arcmin in regions of different density of both galaxies and intergalactic medium within the clus...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
221744237
0801.3801
2008-01-24
A Cross-correlation method to search for gravitational wave bursts with AURIGA and Virgo
We present a method to search for transient GWs using a network of detectors with different spectral and directional sensitivities: the interferometer Virgo and the bar detector AURIGA. The data analysis method is based on the measurements of the correlated energy in the network by means of a weighted cross-correlation...
[ "gr-qc" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15911868
0801.3789
2008-01-24
Anomalous transport and relaxation in classical one-dimensional models
After reviewing the main features of anomalous energy transport in 1D systems, we report simulations performed with chains of noisy anharmonic oscillators. The stochastic terms are added in such a way to conserve total energy and momentum, thus keeping the basic hydrodynamic features of these models. The addition of th...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "g basile_0", "name": "Giada Basile", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l delfini_1", "name": "Luca Delfini", "publication_history": null, "h_index": null, "num_papers": null, ...
null
18519632
0801.3800
2008-01-24
Non-perturbative k-body to two-body commuting conversion Hamiltonians and embedding problem instances into Ising spins
An algebraic method has been developed which allows one to engineer several energy levels including the low-energy subspace of interacting spin systems. By introducing ancillary qubits, this approach allows k-body interactions to be captured exactly using 2-body Hamiltonians. Our method works when all terms in the Hami...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12722270
0801.3827
2008-01-24
Discovery of Localized Regions of Excess 10-TeV Cosmic Rays
An analysis of 7 years of Milagro data performed on a 10-degree angular scale has found two localized regions of excess of unknown origin with greater than 12 sigma significance. Both regions are inconsistent with gamma-ray emission with high confidence. One of the regions has a different energy spectrum than the isotr...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1383089
0801.3703
2008-01-24
On minimality of convolutional ring encoders
Convolutional codes are considered with code sequences modelled as semi-infinite Laurent series. It is wellknown that a convolutional code C over a finite group G has a minimal trellis representation that can be derived from code sequences. It is also wellknown that, for the case that G is a finite field, any polynomia...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "m kuijper_1", "name": "Margreta Kuijper", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r pinto_1", "name": "Raquel Pinto", "publication_history": null, "h_index": null, "num_papers": null, ...
null
9328173
0801.3963
2008-01-25
Type I and type II neuron models are selectively driven by differential stimulus features
Neurons in the nervous system exhibit an outstanding variety of morphological and physiological properties. However, close to threshold, this remarkable richness may be grouped succinctly into two basic types of excitability, often referred to as type I and type II. The dynamical traits of these two neuron types have b...
[ "q-bio.NC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8139984
0801.3906
2008-01-25
Energy Calibration of b-Quark Jets with Z->b-bbar Decays at the Tevatron Collider
The energy measurement of jets produced by b-quarks at hadron colliders suffers from biases due to the peculiarities of the hadronization and decay of the originating B hadron. The impact of these effects can be estimated by reconstructing the mass of Z boson decays into pairs of b-quark jets. From a sample of 584 pb-1...
[ "hep-ex" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "j donini_1", "name": "Julien Donini", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t dorigo_1", "name": "Tommaso Dorigo", "publication_history": null, "h_index": null, "num_papers": null, ...
null
22391009
0801.4020
2008-01-25
Suppression pattern of neutral pions at high transverse momentum in Au+Au collisions at sqrt(s_NN) = 200 GeV and constraints on medium transport coefficients
For Au + Au collisions at 200 GeV we measure neutral pion production with good statistics for transverse momentum, p_T, up to 20 GeV/c. A fivefold suppression is found, which is essentially constant for 5 < p_T < 20 GeV/c. Experimental uncertainties are small enough to constrain any model-dependent parameterization for...
[ "nucl-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a adare_1", "name": "Andrew [\"Marshall\"] Adare", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s afanasiev_1", "name": "S. Afanasiev", "publication_history": null, "h_index": null, "num_pap...
null
16015429
0801.3910
2008-01-25
On the relationship between a giant radio galaxy MSH 05-22 and the ambient large-scale galaxy structure
We present a comparison of the properties of a giant radio galaxy and the ambient intergalactic medium, whose properties are inferred from the large-scale distribution in galaxies. The double lobes of the radio galaxy MSH 05-22 are giant--1.8 Mpc projected linear size--and interacting with the environment outside the i...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15032405
0801.4035
2008-01-25
Neutrino Oscillations With A Next Generation Liquid Argon TPC Detector in Kamioka or Korea Along The J-PARC Neutrino Beam
The ``baseline setup'' for a possible, beyond T2K, next generation long baseline experiment along the J-PARC neutrino beam produced at Tokai, assumes two very large deep-underground Water Cerenkov imaging detectors of about 300 kton fiducial each, located one in Korea and the other in Kamioka but at the same off-axis a...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a meregaglia_1", "name": "Anselmo Meregaglia", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a rubbia_1", "name": "André Rubbia", "publication_history": null, "h_index": null, "num_papers": n...
null
1900202
0801.3884
2008-01-25
How efficient is towing a cargo by a micro-swimmer?
We study the properties of arbitrary micro-swimmers towing a passive load through a viscous liquid. The simple close-form expression for the dragging efficiency of a general micro-swimmer dragging a distant load is found, and the leading order approximation for finite mutual separation is derived. We show that, while s...
[ "physics.flu-dyn" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "o raz_1", "name": "Oren Raz", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a leshansky_1", "name": "Alexander [\"M.\"] Leshansky", "publication_history": null, "h_index": null, "num_papers":...
null
9629203
0801.4101
2008-01-26
Inducing the mu and the B mu Term by the Radion and the 5d Chern-Simons Term
In 5-dimensional models with gauge-Higgs unification, the F-term vacuum expectation value of the radion provides, in close analogy to the Giudice-Masiero mechanism, a natural source for the mu and B mu term. Both the leading order gauge theory lagrangian and the supersymmetric Chern-Simons term contain couplings to the...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
20845380
0801.4131
2008-01-27
Effective Temperature Dynamics in an Athermal Amorphous Plasticity Theory
Recent developments in the theory of amorphous plasticity point to the central role played by the concept of an effective disorder temperature $T_{eff}$. An athermal dynamics for $T_{eff}$ are proposed in the framework of a deformation theory and discussed in light of the recent steady state simulations by Haxton and L...
[ "cond-mat.mtrl-sci", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e bouchbinder_1", "name": "Eran Bouchbinder", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
5491773
0801.4128
2008-01-27
Topologies and Laplacian spectra of a deterministic uniform recursive tree
The uniform recursive tree (URT) is one of the most important models and has been successfully applied to many fields. Here we study exactly the topological characteristics and spectral properties of the Laplacian matrix of a deterministic uniform recursive tree, which is a deterministic version of URT. Firstly, from t...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "z zhang_150", "name": "Zhongzhi Zhang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s zhou_53", "name": "Shuigeng Zhou", "publication_history": null, "h_index": null, "num_papers": null, ...
null
3204974
0801.4198
2008-01-27
Microscopic Analysis for Decoupling Principle of Linear Vector Channel
This paper studies the decoupling principle of a linear vector channel, which is an extension of CDMA and MIMO channels. We show that the scalar-channel characterization obtained via the decoupling principle is valid not only for collections of a large number of elements of input vector, as discussed in previous studie...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "k nakamura_1", "name": "Kazutaka Nakamura", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t tanaka_3", "name": "Toshiyuki TANAKA", "publication_history": null, "h_index": null, "num_papers": ...
null
3266392
0801.4129
2008-01-27
Scaling Laws and Techniques in Decentralized Processing of Interfered Gaussian Channels
The scaling laws of the achievable communication rates and the corresponding upper bounds of distributed reception in the presence of an interfering signal are investigated. The scheme includes one transmitter communicating to a remote destination via two relays, which forward messages to the remote destination through...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a sanderovich_1", "name": "Amichai Sanderovich", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m peleg_1", "name": "Michael Peleg", "publication_history": null, "h_index": null, "num_papers":...
null
11311029
0801.4190
2008-01-27
Phylogenies without Branch Bounds: Contracting the Short, Pruning the Deep
We introduce a new phylogenetic reconstruction algorithm which, unlike most previous rigorous inference techniques, does not rely on assumptions regarding the branch lengths or the depth of the tree. The algorithm returns a forest which is guaranteed to contain all edges that are: 1) sufficiently long and 2) sufficient...
[ "q-bio.PE", "cs.CE", "cs.DS", "math.PR", "math.ST", "stat.TH" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "c daskalakis_1", "name": "Constantinos Daskalakis", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e mossel_1", "name": "Elchanan Mossel", "publication_history": null, "h_index": null, "num_pa...
null
14069383
0801.4255
2008-01-28
A generalisation of the mass-sheet degeneracy producing ring-like artefacts in the lens mass distribution
The inversion of a gravitational lens system is, as is well known, plagued by the so-called mass-sheet degeneracy: one can always rescale the density distribution of the lens and add a constant-density mass-sheet such that the, also properly rescaled, source plane is projected onto the same observed images. For strong ...
[ "astro-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "j liesenborgs_1", "name": "Jori Liesenborgs", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s rijcke_1", "name": "Sven [\"De\"] Rijcke", "publication_history": null, "h_index": null, "num_pap...
null
118445999
0801.4299
2008-01-28
Simulations of the cosmic infrared and submillimeter background for future large surveys: I. Presentation and first application to Herschel/SPIRE and Planck/HFI
The coming Planck and Herschel missions will survey the sky at unprecedented angular scales and sensitivities. Simulations are needed for better interpretating the results of the surveys and for testing new methods of, e.g., source extraction and component separation. We present new simulations of the infrared and subm...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
4792042
0801.4301
2008-01-28
Virtual screening of GPCRs: an in silico chemogenomics approach
The G-protein coupled receptor (GPCR) superfamily is currently the largest class of therapeutic targets. \textit{In silico} prediction of interactions between GPCRs and small molecules is therefore a crucial step in the drug discovery process, which remains a daunting task due to the difficulty to characterize the 3D s...
[ "q-bio.QM" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
931589
0801.4366
2008-01-28
The stability of conditional Markov processes and Markov chains in random environments
We consider a discrete time hidden Markov model where the signal is a stationary Markov chain. When conditioned on the observations, the signal is a Markov chain in a random environment under the conditional measure. It is shown that this conditional signal is weakly ergodic when the signal is ergodic and the observati...
[ "math.PR", "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9649564
0801.4424
2008-01-29
Follow-up observations of binary ultra-cool dwarfs
Astrometric observations of resolved binaries provide estimates of orbital periods and will eventually lead to measurement of dynamical masses. Only a few very low mass star and brown dwarf masses have been measured to date, and the mass-luminosity relation still needs to be calibrated. We have monitored 14 very low ma...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119368681", "num_citations": null }, { "corpus_id": "17818272", "num_citations": null }, { "corpus_id": "119485007", "num_citations": null } ]
[ { "author_id": "h bouy_1", "name": "Hervé Bouy", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h bouy_1", "name": "Hervé Bouy", "publication_history": null, "h_index": null, "num_papers": null, "num_cita...
null
15056947
0801.4391
2008-01-29
Orbital order driven quantum criticality
Charge, spin, and orbital degrees of freedom underlie the physics of transition metal compounds. Much work has revealed quantum critical points associated with spin and charge degrees of freedom in many of these systems. Here we illustrate that the simplest models that embody the orbital degrees of freedom - the two- a...
[ "cond-mat.str-el", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "z nussinov_1", "name": "Zohar Nussinov", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g ortíz_1", "name": "Gerardo [\"Rodríguez\"] Ortíz", "publication_history": null, "h_index": null, "num_...
null
119210014
0801.4565
2008-01-29
Finding Evidence for Massive Neutrinos using 3D Weak Lensing
In this paper we investigate the potential of 3D cosmic shear to constrain massive neutrino parameters. We find that if the total mass is substantial (near the upper limits from LSS, but setting aside the Ly alpha limit for now), then 3D cosmic shear + Planck is very sensitive to neutrino mass and one may expect that a...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16028077
0801.4453
2008-01-29
On the Correlation between Spin Parameter and Halo Mass
We report on a correlation between virial mass M and spin parameter lambda for dark matter halos forming at redshifts z > 10. We find that the spin parameter decreases with increasing halo mass. Interestingly, our analysis indicates that halos forming at later times do not exhibit such a strong correlation, in agreemen...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
45436183
0801.4406
2008-01-29
Cosmic (super)string constraints from 21 cm radiation
We calculate the contribution of cosmic strings arising from a phase transition in the early universe, or cosmic superstrings arising from brane inflation, to the cosmic 21 cm power spectrum at redshifts z > 30. Future experiments can exploit this effect to constrain the cosmic string tension Gu and probe virtually the...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r khatri_2", "name": "Rishi Khatri", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b wandelt_1", "name": "Benjamin [\"D.\"] Wandelt", "publication_history": null, "h_index": null, "num_papers...
null
12676690
0801.4627
2008-01-30
On the Distribution of the Adaptive LASSO Estimator
We study the distribution of the adaptive LASSO estimator (Zou (2006)) in finite samples as well as in the large-sample limit. The large-sample distributions are derived both for the case where the adaptive LASSO estimator is tuned to perform conservative model selection as well as for the case where the tuning results...
[ "math.ST", "stat.ME", "stat.ML", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
4669286
0801.4610
2008-01-30
Sup-norm convergence rate and sign concentration property of Lasso and Dantzig estimators
We derive the $l_{\infty}$ convergence rate simultaneously for Lasso and Dantzig estimators in a high-dimensional linear regression model under a mutual coherence assumption on the Gram matrix of the design and two different assumptions on the noise: Gaussian noise and general noise with finite variance. Then we prove ...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "7048603", "num_citations": null }, { "corpus_id": "187614", "num_citations": null }, { "corpus_id": "1326449", "num_citations": null } ]
[ { "author_id": "k lounici_1", "name": "Karim Lounici", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
1887713
0801.4706
2008-01-30
A Class of Errorless Codes for Over-loaded Synchronous Wireless and Optical CDMA Systems
In this paper we introduce a new class of codes for over-loaded synchronous wireless and optical CDMA systems which increases the number of users for fixed number of chips without introducing any errors. Equivalently, the chip rate can be reduced for a given number of users, which implies bandwidth reduction for downli...
[ "cs.IT", "math.CO", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "p pad_1", "name": "Pedram Pad", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "f marvasti_1", "name": "Farrokh Marvasti", "publication_history": null, "h_index": null, "num_papers": null, ...
null
14690386
0801.4725
2008-01-30
The Bernoulli sieve revisited
We consider an occupancy scheme in which "balls" are identified with $n$ points sampled from the standard exponential distribution, while the role of "boxes" is played by the spacings induced by an independent random walk with positive and nonlattice steps. We discuss the asymptotic behavior of five quantities: the ind...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119218516
0801.4700
2008-01-30
Staggered magnetization and entanglement enhancement by magnetic impurities in $S=1/2$ spin chain
We study the effects of a magnetic impurity on the behavior of a $S=1/2$ spin chain. At T=0, both with and without an applied uniform magnetic field, an oscillating magnetization appears, whose decay with the distance from the impurity is ruled by a power law. As a consequence, pairwise entanglement is either enhanced ...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "t apollaro_1", "name": "Tony [\"John\",\"George\"] Apollaro", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a cuccoli_1", "name": "Alessandro Cuccoli", "publication_history": null, "h_index": nul...
null
16501630
0801.4723
2008-01-30
Ramsey-like cardinals
One of the numerous characterizations of a Ramsey cardinal kappa involves the existence of certain types of elementary embeddings for transitive sets of size \kappa satisfying a large fragment of ZFC. We introduce new large cardinal axioms generalizing the Ramsey elementary embeddings characterization and show that the...
[ "math.LO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16364516
0801.4655
2008-01-30
Refracted Levy processes
Motivated by classical considerations from risk theory, we investigate boundary crossing problems for refracted L\'evy processes. The latter is a L\'evy process whose dynamics change by subtracting off a fixed linear drift (of suitable size) whenever the aggregate process is above a pre-specified level. More formally, ...
[ "math.PR", "math.OC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18020742
0801.4801
2008-01-31
GROND - a 7-channel imager
We describe the construction of GROND, a 7-channel imager, primarily designed for rapid observations of gamma-ray burst afterglows. It allows simultaneous imaging in the Sloan g'r'i'z' and near-infrared $JHK$ bands. GROND was commissioned at the MPI/ESO 2.2m telescope at La Silla (Chile) in April 2007, and first result...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12336232
0801.4838
2008-01-31
Active Brownian Motion Models and Applications to Ratchets
We give an overview over recent studies on the model of Active Brownian Motion (ABM) coupled to reservoirs providing free energy which may be converted into kinetic energy of motion. First, we present an introduction to a general concept of active Brownian particles which are capable to take up energy from the source a...
[ "physics.data-an", "cond-mat.soft", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a fiasconaro_1", "name": "Alessandro Fiasconaro", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "w ebeling_0", "name": "Werner Ebeling", "publication_history": null, "h_index": null, "num_pape...
null
111386537
0801.4894
2008-01-31
Light and Motion in SDSS Stripe 82: The Catalogues
We present a new public archive of light-motion curves in Sloan Digital Sky Survey (SDSS) Stripe 82, covering 99 deg in right ascension from RA = 20.7 h to 3.3 h and spanning 2.52 deg in declination from Dec = -1.26 to 1.26 deg, for a total sky area of ~249 sq deg. Stripe 82 has been repeatedly monitored in the u, g, r...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15381270
0801.4879
2008-01-31
Characterizations and simulations of a class of stochastic processes to model anomalous diffusion
In this paper we study a parametric class of stochastic processes to model both fast and slow anomalous diffusion. This class, called generalized grey Brownian motion (ggBm), is made up off self-similar with stationary increments processes (H-sssi) and depends on two real parameters alpha in (0,2) and beta in (0,1]. It...
[ "math-ph", "cond-mat.stat-mech", "math.MP", "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10230433
0801.4917
2008-01-31
Zero-Knowledge Proofs of the Conjugacy for Permutation Groups
We design a perfect zero-knowledge proof system for recognition if two permutation groups are conjugate.
[ "cs.CC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "o verbitsky_1", "name": "Oleg Verbitsky", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
740758
0802.0002
2008-01-31
The Third Image of the Large-Separation Lensed Quasar SDSS J1029+2623
We identify a third image in the unique quasar lens SDSS J1029+2623, the second known quasar lens produced by a massive cluster of galaxies. The spectrum of the third image shows similar emission and absorption features, but has a redder continuum than the other two images which can be explained by differential extinct...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119255215", "num_citations": null } ]
[ { "author_id": "m oguri_1", "name": "Masamune Oguri", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e ofek_2", "name": "Eran. [\"O.\"] Ofek", "publication_history": null, "h_index": null, "num_papers": null,...
null
6446415
0801.4911
2008-01-31
On the Double Coset Membership Problem for Permutation Groups
We show that the Double Coset Membership problem for permutation groups possesses perfect zero-knowledge proofs.
[ "cs.CC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "o verbitsky_1", "name": "Oleg Verbitsky", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
11829743
0801.4947
2008-01-31
Applications of the Superconformal Index for Protected Operators and q-Hypergeometric Identities to N=1 Dual Theories
The results of Romelsberger for a N=1 superconformal index counting protected operators, satisfying a BPS condition and which cannot be combined to form long multiplets, are analysed further. The index is expressible in terms of single particle superconformal characters for N=1 scalar and vector multiplets. For SQCD, i...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11931491
0801.4921
2008-01-31
Phase Transitions in Charged Topological-AdS Black Holes
We study the perturbative behaviour of charged topological-AdS black holes. We calculate both analytically and numerically the quasi-normal modes of the electromagnetic and gravitational perturbations. Keeping the charge-to-mass ratio constant, we show that there is a second-order phase transition at a critical tempera...
[ "hep-th", "astro-ph", "gr-qc" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g koutsoumbas_1", "name": "George Koutsoumbas", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e papantonopoulos_1", "name": "Eleftherios Papantonopoulos", "publication_history": null, "h_index": ...
null
118366123
0801.4949
2008-01-31
Transverse momentum dependence of J/psi shadowing effects
We present a new approach to estimate the effect of the gluon shadowing in nucleus+nucleus collisions and its consequences on the J/psi production yield. Using kinematical information available from the measured J/psi production in proton+proton collisions at \sqrt s = 200 GeV, we build a Glauber Monte Carlo code which...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "43399403", "num_citations": null }, { "corpus_id": "119091182", "num_citations": null } ]
[ { "author_id": "e ferreiro_1", "name": "Elena [\"Gonzalez\"] Ferreiro", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "f fleuret_2", "name": "François Fleuret", "publication_history": null, "h_index": null, "...
null
16109449
0801.4826
2008-01-31
The effect of primordial non-Gaussianity on halo bias
It has long been known how to analytically relate the clustering properties of the collapsed structures (halos) to those of the underlying dark matter distribution for Gaussian initial conditions. Here we apply the same approach to physically motivated non-Gaussian models. The techniques we use were developed in the 19...
[ "astro-ph", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
983466
0801.4837
2008-01-31
Sparse permutation invariant covariance estimation
The paper proposes a method for constructing a sparse estimator for the inverse covariance (concentration) matrix in high-dimensional settings. The estimator uses a penalized normal likelihood approach and forces sparsity by using a lasso-type penalty. We establish a rate of convergence in the Frobenius norm as both da...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
118735114
0802.0007
2008-02-01
Implications of CTEQ global analysis for collider observables
The latest CTEQ6.6 parton distributions, obtained by global analysis of hard scattering data in the framework of general-mass perturbative QCD, are employed to study theoretical predictions and their uncertainties for significant processes at the Fermilab Tevatron and CERN Large Hadron Collider. The previously observed...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1938991
0802.0131
2008-02-01
Compressed Sensing in Astronomy
Recent advances in signal processing have focused on the use of sparse representations in various applications. A new field of interest based on sparsity has recently emerged: compressed sensing. This theory is a new sampling framework that provides an alternative to the well-known Shannon sampling theory. In this pape...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16563806
0802.0139
2008-02-01
An improved global analysis of nuclear parton distribution functions including RHIC data
We present an improved leading-order global DGLAP analysis of nuclear parton distribution functions (nPDFs), supplementing the traditionally used data from deep inelastic lepton-nucleus scattering and Drell-Yan dilepton production in proton-nucleus collisions, with inclusive high-$p_T$ hadron production data measured a...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14854995
0802.0124
2008-02-01
Optimization code with weighting function for the reconstruction of coronal magnetic fields
We developed a code for the reconstruction of nonlinear force-free and non-force-free coronal magnetic fields. The 3D magnetic field is computed numerically with the help of an optimization principle. The force-free and non-force-free codes are compiled in one program. The force-free approach needs photospheric vector ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12298522
0802.0096
2008-02-01
The University of New South Wales Extrasolar Planet Search: a catalogue of variable stars from fields observed 2004--2007
We present a new catalogue of variable stars compiled from data taken for the University of New South Wales Extrasolar Planet Search. From 2004 October to 2007 May, 25 target fields were each observed for 1-4 months, resulting in ~87000 high precision light curves with 1600-4400 data points. We have extracted a total o...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14119953
0802.0179
2008-02-01
On the Relation Between the Index Coding and the Network Coding Problems
In this paper we show that the Index Coding problem captures several important properties of the more general Network Coding problem. An instance of the Index Coding problem includes a server that holds a set of information messages $X=\{x_1,...,x_k\}$ and a set of receivers $R$. Each receiver has some side information...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s rouayheb_1", "name": "Salim [\"Y.\",\"El\"] Rouayheb", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a sprintson_1", "name": "Alexander Sprintson", "publication_history": null, "h_index": null,...
null
12174969
0802.0064
2008-02-01
V-Variable Fractals: Fractals with Partial Self Similarity
We establish properties of a new type of fractal which has partial self similarity at all scales. For any collection of iterated functions systems with an associated probability distribution and any positive integer V there is a corresponding class of V-variable fractal sets or measures. These V-variable fractals can b...
[ "math.DS", "math.PR" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "18992671", "num_citations": null } ]
[ { "author_id": "m barnsley_1", "name": "Michael [\"F.\"] Barnsley", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j hutchinson_1", "name": "John [\"E.\"] Hutchinson", "publication_history": null, "h_index": null...
null
2615887
0802.0165
2008-02-01
Elliptic periods for finite fields
We construct two new families of basis for finite field extensions. Basis in the first family, the so-called elliptic basis, are not quite normal basis, but they allow very fast Frobenius exponentiation while preserving sparse multiplication formulas. Basis in the second family, the so-called normal elliptic basis are ...
[ "math.NT", "math.AG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9426606
0802.0251
2008-02-02
Multi-Layer Perceptrons and Symbolic Data
In some real world situations, linear models are not sufficient to represent accurately complex relations between input variables and output variables of a studied system. Multilayer Perceptrons are one of the most successful non-linear regression tool but they are unfortunately restricted to inputs and outputs that be...
[ "cs.NE" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f rossi_1", "name": "Fabrice Rossi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b conan-guez_1", "name": "Brieuc Conan-Guez", "publication_history": null, "h_index": null, "num_papers": nu...
null
16295214
0802.0286
2008-02-03
The High Velocity Gas toward Messier 5: Tracing Feedback Flows in the Inner Galaxy
We present Far Ultraviolet Spectroscopic Explorer (FUSE) and Space Telescope Imaging Spectrograph (STIS E140M) observations of the post-asymptotic giant branch star ZNG 1 in the globular cluster Messier 5 (l=3.9, b=+47.7; d=7.5 kpc, z=+5.3 kpc). High velocity absorption is seen in C IV, Si IV, O VI, and lower ionizatio...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18255175
0802.0494
2008-02-04
The magnetar 1E 1547.0-5408: radio spectrum, polarimetry, and timing
We have investigated the radio emission from the anomalous X-ray pulsar 1E 1547.0-5408 (PSR J1550-5418) using the Parkes telescope and the Australia Telescope Compact Array. The flux density of the pulsar is roughly the same between 1.4 and 45 GHz, but shows time variability. The radiation is nearly 100% linearly polar...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14513220
0802.0303
2008-02-04
The Taiwanese-American Occultation Survey: The Multi-Telescope Robotic Observatory
The Taiwanese-American Occultation Survey (TAOS) operates four fully automatic telescopes to search for occultations of stars by Kuiper Belt Objects. It is a versatile facility that is also useful for the study of initial optical GRB afterglows. This paper provides a detailed description of the TAOS multi-telescope sys...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3531581
0802.0550
2008-02-04
Energy Aware Self-Organizing Density Management in Wireless Sensor Networks
Energy consumption is the most important factor that determines sensor node lifetime. The optimization of wireless sensor network lifetime targets not only the reduction of energy consumption of a single sensor node but also the extension of the entire network lifetime. We propose a simple and adaptive energy-conservin...
[ "cs.DC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e merrer_1", "name": "Erwan [\"Le\"] Merrer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v gramoli_1", "name": "Vincent Gramoli", "publication_history": null, "h_index": null, "num_papers"...
null
16319052
0802.0370
2008-02-04
Integral field spectroscopy of four lensed quasars: analysis of their neighborhood and evidence for microlensing
CONTEXT: Gravitationally lensed quasars constitute an independent tool to derive H0 through time-delays; they offer as well the opportunity to study the mass distribution and interstellar medium of their lensing galaxies and, through microlensing they also allow one to study details of the emitting source. AIMS: For su...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15612911
0802.0489
2008-02-04
Measuring the roughness of random paths by increment ratios
A statistic based on increment ratios (IR) and related to zero crossings of increment sequence is defined and studied for measuring the roughness of random paths. The main advantages of this statistic are robustness to smooth additive and multiplicative trends and applicability to infinite variance processes. The exist...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17999489
0802.0330
2008-02-04
Spherical black holes with regular center: a review of existing models including a recent realization with Gaussian sources
We review, in a historical perspective, some results about black hole spacetimes with a regular center. We then see how their properties are realized in a specific solution that recently appeared; in particular we analyze in detail the (necessary) violation of the strong energy condition.
[ "gr-qc" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6922576
0802.0443
2008-02-04
Global Sensitivity Analysis of Stochastic Computer Models with joint metamodels
The global sensitivity analysis method, used to quantify the influence of uncertain input variables on the response variability of a numerical model, is applicable to deterministic computer code (for which the same set of input variables gives always the same output value). This paper proposes a global sensitivity anal...
[ "stat.ME", "stat.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119229878
0802.0564
2008-02-05
Controlling the quantum computational speed
The speed of quantum computation is investigated through the time evolution of the speed of the orthogonality. The external field components for classical treatment beside the detuning and the coupling parameters for quantum treatment play important roles on the computational speed. It has been shown that the number of...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n metwally_0", "name": "Nasser Metwally", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m abdel-aty_1", "name": "Mohamed [\"A.\"] Abdel-Aty", "publication_history": null, "h_index": null, "nu...
null
5931845
0802.0556
2008-02-05
Uncovering Biological Network Function via Graphlet Degree Signatures
Proteins are essential macromolecules of life and thus understanding their function is of great importance. The number of functionally unclassified proteins is large even for simple and well studied organisms such as baker's yeast. Methods for determining protein function have shifted their focus from targeting specifi...
[ "q-bio.MN" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
89405
0802.0617
2008-02-05
On the Distribution of the Domination Number of a New Family of Parametrized Random Digraphs
We derive the asymptotic distribution of the domination number of a new family of random digraph called proximity catch digraph (PCD), which has application to statistical testing of spatial point patterns and to pattern recognition. The PCD we use is a parametrized digraph based on two sets of points on the plane, whe...
[ "math.CO", "math.PR" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e ceyhan_1", "name": "Elvan Ceyhan", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c priebe_1", "name": "Carey [\"E.\"] Priebe", "publication_history": null, "h_index": null, "num_papers": nu...
null