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 ⌀ |
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16224289 | 0904.3864 | 2009-04-24 | The normal field instability under side-wall effects: comparison of experiments and computations | We consider a single spike of ferrofluid, arising in a small cylindrical container, when a vertically oriented magnetic field is applied. The height of the spike as well as the surface topography is measured experimentally by two different technologies and calculated numerically using the finite element method. As a co... | [
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9730378 | 0904.3874 | 2009-04-24 | Highly entangled multi-qubit states with simple algebraic structure | Recent works by Brown et al and Borras et al have explored numerical optimisation procedures to search for highly entangled multi-qubit states according to some computationally tractable entanglement measure. We present an alternative scheme based upon the idea of searching for states having not only high entanglement ... | [
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115171799 | 0904.3762 | 2009-04-24 | Nonlinear dynamics of spin and charge in spin-Calogero model | The fully nonlinear dynamics of spin and charge in spin-Calogero model is studied. The latter is an integrable one-dimensional model of quantum spin-1/2 particles interacting through inverse-square interaction and exchange. Classical hydrodynamic equations of motion are written for this model in the regime where gradie... | [
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55520968 | 0904.3774 | 2009-04-24 | Perspectives of a Midrapidity Dimuon Program at RHIC: A Novel and Compact Muon Telescope Detector | We propose a large-area, cost-effective Muon Telescope Detector (MTD) for the Solenoidal Tracker at RHIC (STAR) at mid-rapidity and for the next generation of detectors at a possible electron-ion collider. We utilize Multi-gap Resistive Plate Chambers with large modules and long readout strips (Long-MRPC) in the detect... | [
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59439006 | 0904.3869 | 2009-04-24 | Yield criteria for quasibrittle and frictional materials: a generalization to surfaces with corners | Convexity of a yield function (or phase-transformation function) and its relations to convexity of the corresponding yield surface (or phase-transformation surface) is essential to the invention, definition and comparison with experiments of new yield (or phase-transformation) criteria. This issue was previously addres... | [
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"name": "Davide Bigoni",
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1569891 | 0904.3761 | 2009-04-24 | Approximate Triangle Counting | Triangle counting is an important problem in graph mining. Clustering coefficients of vertices and the transitivity ratio of the graph are two metrics often used in complex network analysis. Furthermore, triangles have been used successfully in several real-world applications. However, exact triangle counting is an exp... | [
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46689514 | 0904.3986 | 2009-04-25 | Optimality of Affine Policies in Multi-stage Robust Optimization | In this paper, we show the optimality of a certain class of disturbance-affine control policies in the context of one-dimensional, constrained, multi-stage robust optimization. Our results cover the finite horizon case, with minimax (worst-case) objective, and convex state costs plus linear control costs. We develop a ... | [
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17315806 | 0904.3975 | 2009-04-25 | Ionospheric Calibration of Low Frequency Radio Interferometric Observations using the Peeling Scheme: I. Method Description and First Results | Calibration of radio interferometric observations becomes increasingly difficult towards lower frequencies. Below ~300 MHz, spatially variant refractions and propagation delays of radio waves traveling through the ionosphere cause phase rotations that can vary significantly with time, viewing direction and antenna loca... | [
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1129632 | 0904.3994 | 2009-04-25 | Compressed Remote Sensing of Sparse Objects | The linear inverse source and scattering problems are studied from the perspective of compressed sensing, in particular the idea that sufficient incoherence and sparsity guarantee uniqueness of the solution. By introducing the sensor as well as target ensembles, the maximum number of recoverable targets is proved to be... | [
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10146761 | 0904.3947 | 2009-04-25 | Continued Fractions and the Partially Asymmetric Exclusion Process | We note that a tridiagonal matrix representation of the algebra of the partially asymmetric exclusion process (PASEP) lends itself to interpretation as the transfer matrix for weighted Motzkin lattice paths. A continued fraction ("J-Fraction") representation of the lattice path generating function is particularly well ... | [
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3026701 | 0904.4064 | 2009-04-26 | Multihomogeneous Resultant Formulae for Systems with Scaled Support | Constructive methods for matrices of multihomogeneous (or multigraded) resultants for unmixed systems have been studied by Weyman, Zelevinsky, Sturmfels, Dickenstein and Emiris. We generalize these constructions to mixed systems, whose Newton polytopes are scaled copies of one polytope, thus taking a step towards syste... | [
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9769871 | 0904.4154 | 2009-04-26 | Anomalous Hall effect | We present a review of experimental and theoretical studies of the anomalous Hall effect (AHE), focusing on recent developments that have provided a more complete framework for understanding this subtle phenomenon and have, in many instances, replaced controversy by clarity. Synergy between experimental and theoretical... | [
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12138407 | 0904.4169 | 2009-04-27 | Dense cores in the Pipe Nebula: An improved core mass function | In this paper we derive an improved core mass function (CMF) for the Pipe Nebula from a detailed comparison between measurements of visual extinction and molecular-line emission. We have compiled a refined sample of 201 dense cores toward the Pipe Nebula using a 2-dimensional threshold identification algorithm informed... | [
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8579130 | 0904.4061 | 2009-04-27 | Approximation Algorithms for Key Management in Secure Multicast | Many data dissemination and publish-subscribe systems that guarantee the privacy and authenticity of the participants rely on symmetric key cryptography. An important problem in such a system is to maintain the shared group key as the group membership changes. We consider the problem of determining a key hierarchy that... | [
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5665214 | 0904.4176 | 2009-04-27 | Parallel Random Apollonian Networks | We present and study in this paper a simple algorithm that produces so called growing Parallel Random Apollonian Networks (P-RAN) in any dimension d. Analytical derivations show that these networks still exhibit small-word and scale-free characteristics. To characterize further the structure of P-RAN, we introduce new ... | [
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8684058 | 0904.4143 | 2009-04-27 | Maximizing the probability of attaining a target prior to extinction | We present a dynamic programming-based solution to the problem of maximizing the probability of attaining a target set before hitting a cemetery set for a discrete-time Markov control process. Under mild hypotheses we establish that there exists a deterministic stationary policy that achieves the maximum value of this ... | [
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16557933 | 0904.4280 | 2009-04-27 | Early Fermi Gamma-ray Space Telescope Observations of the Quasar 3C 454.3 | This is the first report of Fermi Gamma-ray Space Telescope observations of the quasar 3C 454.3, which has been undergoing pronounced long-term outbursts since 2000. The data from the Large Area Telescope (LAT), covering 2008 July 7 - October 6, indicate strong, highly variable gamma-ray emission with an average flux o... | [
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12910172 | 0904.4214 | 2009-04-27 | Quantum walk of a trapped ion in phase space | We implement the proof of principle for the quantum walk of one ion in a linear ion trap. With a single-step fidelity exceeding 0.99, we perform three steps of an asymmetric walk on the line. We clearly reveal the differences to its classical counterpart if we allow the walker/ion to take all classical paths simultaneo... | [
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59838 | 0904.4193 | 2009-04-27 | On the Power of Randomization in Algorithmic Mechanism Design | In many settings the power of truthful mechanisms is severely bounded. In this paper we use randomization to overcome this problem. In particular, we construct an FPTAS for multi-unit auctions that is truthful in expectation, whereas there is evidence that no polynomial-time truthful deterministic mechanism provides an... | [
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14380533 | 0904.4264 | 2009-04-27 | Analyticity, Convergence and Convergence Rate of Recursive Maximum Likelihood Estimation in Hidden Markov Models | This paper considers the asymptotic properties of the recursive maximum likelihood estimation in hidden Markov models. The paper is focused on the asymptotic behavior of the log-likelihood function and on the point-convergence and convergence rate of the recursive maximum likelihood estimator. Using the principle of an... | [
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14465754 | 0904.4164 | 2009-04-27 | Smooth roots of hyperbolic polynomials with definable coefficients | We prove that the roots of a definable $C^\infty$ curve of monic hyperbolic polynomials admit a definable $C^\infty$ parameterization, where `definable' refers to any fixed o-minimal structure on $(\mathbb R,+,\cdot)$. Moreover, we provide sufficient conditions, in terms of the differentiability of the coefficients and... | [
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14667541 | 0904.4343 | 2009-04-28 | On the Achievability of Interference Alignment in the K-User Constant MIMO Interference Channel | Interference alignment in the K-user MIMO interference channel with constant channel coefficients is considered. A novel constructive method for finding the interference alignment solution is proposed for the case where the number of transmit antennas equals the number of receive antennas (NT = NR = N), the number of t... | [
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54635922 | 0904.4465 | 2009-04-28 | On fundamental groups of quotient spaces | In classical covering space theory, a covering map induces an injection of fundamental groups. This paper reveals a dual property for certain quotient maps having connected fibers, with applications to orbit spaces of vector fields and leaf spaces in general. | [
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2254874 | 0904.4512 | 2009-04-28 | Bounds on series-parallel slowdown | We use activity networks (task graphs) to model parallel programs and consider series-parallel extensions of these networks. Our motivation is two-fold: the benefits of series-parallel activity networks and the modelling of programming constructs, such as those imposed by current parallel computing environments. Series... | [
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12249954 | 0904.4313 | 2009-04-28 | Subdegree Sunyaev-Zel'dovich Signal from Multifrequency BOOMERanG observations | The Sunyaev-Zel'dovich (SZ) effect is the inverse Compton-scattering of cosmic microwave background (CMB) photons by hot electrons in the intervening gas throughout the universe. The effect has a distinct spectral signature that allows its separation from other signals in multifrequency CMB datasets. Using CMB anisotro... | [
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118504735 | 0904.4483 | 2009-04-28 | Theoretical framework for quantum networks | We present a framework to treat quantum networks and all possible transformations thereof, including as special cases all possible manipulations of quantum states, measurements, and channels, such as, e.g., cloning, discrimination, estimation, and tomography. Our framework is based on the concepts of quantum comb-which... | [
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18265630 | 0904.4305 | 2009-04-28 | The origin of large peculiar motions of star-forming regions and spiral structures of our Galaxy | Recent VLBI (Very Long Baseline Interferometer) observations determined the distances and proper motions of star-forming regions in spiral arms directly. They showed that star-forming regions and young stars have large peculiar motions, as large as 30 km/s with complex structures. Such a large peculiar motion is incomp... | [
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10019970 | 0904.4377 | 2009-04-28 | Pulsed Gamma-rays from the millisecond pulsar J0030+0451 with the Fermi Large Area Telescope | We report the discovery of gamma-ray pulsations from the nearby isolated millisecond pulsar PSR J0030+0451 with the Large Area Telescope (LAT) on the \emph{Fermi} Gamma-ray Space Telescope (formerly GLAST). This discovery makes PSR J0030+0451 the second millisecond pulsar to be detected in gamma-rays after PSR J0218+42... | [
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14540643 | 0904.4704 | 2009-04-29 | HAT-P-12b: A Low-Density Sub-Saturn Mass Planet Transiting a Metal-Poor K Dwarf | We report on the discovery of HAT-P-12b, a transiting extrasolar planet orbiting the moderately bright V=12.8 K4 dwarf GSC 03033-00706, with a period P = 3.2130598 +- 0.0000021 d, transit epoch Tc = 2454419.19556 +- 0.00020 (BJD) and transit duration 0.0974 +- 0.0006 d. The host star has a mass of 0.73 +- 0.02 Msun, ra... | [
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119076329 | 0904.4663 | 2009-04-29 | The role of preparation in quantum process tomography | In a recent letter one of us pointed out how differences in preparation procedures for quantum experiments can lead to non-trivial differences in the results of the experiment. The difference arise from the initial correlations between the system and environment. Therefore, any quantum experiment that is prone to the i... | [
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193825 | 0904.4717 | 2009-04-29 | Continuous Strategy Replicator Dynamics for Multi--Agent Learning | The problem of multi-agent learning and adaptation has attracted a great deal of attention in recent years. It has been suggested that the dynamics of multi agent learning can be studied using replicator equations from population biology. Most existing studies so far have been limited to discrete strategy spaces with a... | [
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581444 | 0904.4709 | 2009-04-29 | Software Model Checking via Large-Block Encoding | The construction and analysis of an abstract reachability tree (ART) are the basis for a successful method for software verification. The ART represents unwindings of the control-flow graph of the program. Traditionally, a transition of the ART represents a single block of the program, and therefore, we call this appro... | [
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17098890 | 0904.4578 | 2009-04-29 | The gauge theory of dislocations: a uniformly moving screw dislocation | In this paper we present the equations of motion of a moving screw dislocation in the framework of the translation gauge theory of dislocations. In the gauge field theoretical formulation, a dislocation is a massive gauge field. We calculate the gauge field theoretical solutions of a uniformly moving screw dislocation.... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17289945 | 0904.4559 | 2009-04-29 | The micro-glitch in PSR B1821-24 : A case for a strange pulsar? | The single glitch observed in PSR B1821-24, a millisecond pulsar in M28, is unusual on two counts. First, the magnitude of this glitch is at least an order of magnitude smaller ($\Delta \nu / \nu \sim 10^{-11}$) than the smallest glitch observed to date. Secondly, all other glitching pulsars have strong magnetic fields... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10345958 | 0904.4635 | 2009-04-29 | A Variable Splitting Augmented Lagrangian Approach to Linear Spectral Unmixing | This paper presents a new linear hyperspectral unmixing method of the minimum volume class, termed \emph{simplex identification via split augmented Lagrangian} (SISAL). Following Craig's seminal ideas, hyperspectral linear unmixing amounts to finding the minimum volume simplex containing the hyperspectral vectors. This... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2590335 | 0904.4670 | 2009-04-29 | Discrepancy-Sensitive Dynamic Fractional Cascading, Dominated Maxima Searching, and 2-d Nearest Neighbors in Any Minkowski Metric | This paper studies a discrepancy-sensitive approach to dynamic fractional cascading. We provide an efficient data structure for dominated maxima searching in a dynamic set of points in the plane, which in turn leads to an efficient dynamic data structure that can answer queries for nearest neighbors using any Minkowski... | [
"cs.DS",
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5614623 | 0904.4903 | 2009-04-30 | Iterative Maximum Likelihood on Networks | We consider n agents located on the vertices of a connected graph. Each agent v receives a signal X_v(0)~N(s, 1) where s is an unknown quantity. A natural iterative way of estimating s is to perform the following procedure. At iteration t + 1 let X_v(t + 1) be the average of X_v(t) and of X_w(t) among all the neighbors... | [
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{
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"name": "Omer Tamuz",
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"... | null |
16758015 | 0904.4872 | 2009-04-30 | Fast Frame-Based Image Deconvolution Using Variable Splitting and Constrained Optimization | We propose a new fast algorithm for solving one of the standard formulations of frame-based image deconvolution: an unconstrained optimization problem, involving an $\ell_2$ data-fidelity term and a non-smooth regularizer. Our approach is based on using variable splitting to obtain an equivalent constrained optimizatio... | [
"math.OC"
] | null | [
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] | null | null | null |
14253855 | 0904.4900 | 2009-04-30 | On optimal precoding in linear vector Gaussian channels with arbitrary input distribution | The design of the precoder the maximizes the mutual information in linear vector Gaussian channels with an arbitrary input distribution is studied. Precisely, the precoder optimal left singular vectors and singular values are derived. The characterization of the right singular vectors is left, in general, as an open pr... | [
"cs.IT",
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"name": "Daniel [\"Pérez\"] Palomar",
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14296099 | 0904.4817 | 2009-04-30 | Estimating eddy diffusivities from noisy Lagrangian observations | The problem of estimating the eddy diffusivity from Lagrangian observations in the presence of measurement error is studied in this paper. We consider a class of incompressible velocity fields for which is can be rigorously proved that the small scale dynamics can be parameterised in terms of an eddy diffusivity tensor... | [
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{
"author_id": "c cotter_1",
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"name": "Grigorios [\"A.\"] Pavliotis",
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... | null |
6705458 | 0904.4774 | 2009-04-30 | Dictionary Identification - Sparse Matrix-Factorisation via $\ell_1$-Minimisation | This article treats the problem of learning a dictionary providing sparse representations for a given signal class, via $\ell_1$-minimisation. The problem can also be seen as factorising a $\ddim \times \nsig$ matrix $Y=(y_1 >... y_\nsig), y_n\in \R^\ddim$ of training signals into a $\ddim \times \natoms$ dictionary ma... | [
"cs.IT",
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] | null | [
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] | null | null | null |
9218757 | 0905.0044 | 2009-04-30 | ADMiRA: Atomic Decomposition for Minimum Rank Approximation | We address the inverse problem that arises in compressed sensing of a low-rank matrix. Our approach is to pose the inverse problem as an approximation problem with a specified target rank of the solution. A simple search over the target rank then provides the minimum rank solution satisfying a prescribed data approxima... | [
"math.NA",
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"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17467304 | 0904.4723 | 2009-04-30 | Restricted isometry property of matrices with independent columns and neighborly polytopes by random sampling | This paper considers compressed sensing matrices and neighborliness of a centrally symmetric convex polytope generated by vectors $\pm X_1,...,\pm X_N\in\R^n$, ($N\ge n$). We introduce a class of random sampling matrices and show that they satisfy a restricted isometry property (RIP) with overwhelming probability. In p... | [
"math.PR",
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] | null | [
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] | null | null | null |
14004449 | 0904.4908 | 2009-04-30 | HI content and star formation in the interacting galaxy Arp86 | We present the results of Giant Metrewave Radio Telescope (GMRT) observations of the interacting system Arp86 in both neutral atomic hydrogen, HI, and in radio continuum at 240, 606 and 1394 MHz. In addition to HI emission from the two dominant galaxies, NGC7752 and NGC7753, these observations show a complex distributi... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
30277228 | 0905.0016 | 2009-04-30 | Characterizing Voltage Contrast in Photoelectron Emission Microscopy | A non-destructive technique for obtaining voltage contrast information with photoelectron emission microscopy (PEEM) is described. Samples consisting of electrically isolated metal lines were used to quantify voltage contrast in PEEM. The voltage contrast behavior is characterized by comparing measured voltage contrast... | [
"cond-mat.mtrl-sci"
] | null | [
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{
"author_id": "v sangwan_1",
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{
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"name": "Vincent [\"W.\"] Ballarotto",
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16718441 | 0904.4884 | 2009-04-30 | Circumplanetary disc properties obtained from radiation hydrodynamical simulations of gas accretion by protoplanets | We investigate the properties of circumplanetary discs formed in three-dimensional, self-gravitating radiation hydrodynamical models of gas accretion by protoplanets. We determine disc sizes, scaleheights, and density and temperature profiles for different protoplanet masses, in solar nebulae of differing grain opaciti... | [
"astro-ph.EP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14890077 | 0904.4741 | 2009-04-30 | Belief-Propagation Decoding of Lattices Using Gaussian Mixtures | A belief-propagation decoder for low-density lattice codes is given which represents messages explicitly as a mixture of Gaussians functions. The key component is an algorithm for approximating a mixture of several Gaussians with another mixture with a smaller number of Gaussians. This Gaussian mixture reduction algori... | [
"cs.IT",
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{
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5403714 | 0904.4891 | 2009-04-30 | Classification and categorical inputs with treed Gaussian process models | Recognizing the successes of treed Gaussian process (TGP) models as an interpretable and thrifty model for nonparametric regression, we seek to extend the model to classification. Both treed models and Gaussian processes (GPs) have, separately, enjoyed great success in application to classification problems. An example... | [
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"name": "Robert [\"B.\"] Gramacy",
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4030163 | 0904.4926 | 2009-04-30 | Variable-Rate M-PSK Communications without Channel Amplitude Estimation | Channel estimation at the receiver side is essential to adaptive modulation schemes, prohibiting low complexity systems from using variable rate and/or variable power transmissions. Towards providing a solution to this problem, we introduce a variable-rate (VR) M-PSK modulation scheme, for communications over fading ch... | [
"cs.IT",
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{
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{
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11179229 | 0905.0042 | 2009-05-01 | General coarse-grained red blood cell models: I. Mechanics | We present a rigorous procedure to derive coarse-grained red blood cell (RBC) models, which lead to accurate mechanical properties of realistic RBCs. Based on a semi-analytic theory linear and non-linear elastic properties of the RBC membrane can be matched with those obtained in optical tweezers stretching experiments... | [
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{
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"name": "Bruce Caswell",
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1726001 | 0905.0036 | 2009-05-01 | On the Secrecy Rate Region for the Interference Channel | This paper studies interference channels with security constraints. The existence of an external eavesdropper in a two-user interference channel is assumed, where the network users would like to secure their messages from the external eavesdropper. The cooperative binning and channel prefixing scheme is proposed for th... | [
"cs.IT",
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{
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"... | null |
8792854 | 0905.0079 | 2009-05-01 | Multiple-Bases Belief-Propagation Decoding of High-Density Cyclic Codes | We introduce a new method for decoding short and moderate length linear block codes with dense parity-check matrix representations of cyclic form, termed multiple-bases belief-propagation (MBBP). The proposed iterative scheme makes use of the fact that a code has many structurally diverse parity-check matrices, capable... | [
"cs.IT",
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{
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"name": "Johannes [\"B.\"] Huber",
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18036948 | 0905.0149 | 2009-05-01 | Observers for canonic models of neural oscillators | We consider the problem of state and parameter estimation for a wide class of nonlinear oscillators. Observable variables are limited to a few components of state vector and an input signal. The problem of state and parameter reconstruction is viewed within the classical framework of observer design. This framework off... | [
"q-bio.NC",
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{
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"name": "Ivan [\"Y.\"] Tyukin",
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16629851 | 0905.0020 | 2009-05-01 | Search for gravitational-wave bursts in the first year of the fifth LIGO science run | We present the results obtained from an all-sky search for gravitational-wave (GW) bursts in the 64-2000 Hz frequency range in data collected by the LIGO detectors during the first year (November 2005 - November 2006) of their fifth science run. The total analyzed livetime was 268.6 days. Multiple hierarchical data ana... | [
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17063836 | 0905.0117 | 2009-05-01 | X-ray and Infrared Observations of Two Externally-Polluted White Dwarfs | With XMM-Newton and the Spitzer Space Telescope, we obtain upper bounds to the X-ray fluxes from G29-38 and GD 362, and the 70 micron flux from G29-38. These data provide indirect evidence that G29-38 is accreting from a tidally-disrupted asteroid: it is neither accreting large amounts of hydrogen and helium nor is its... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1739744 | 0905.0233 | 2009-05-02 | Robust Principal Component Analysis: Exact Recovery of Corrupted Low-Rank Matrices | This paper has been withdrawn due to a critical error near equation (71). This error causes the entire argument of the paper to collapse. Emmanuel Candes of Stanford discovered the error, and has suggested a correct analysis, which will be reported in a separate publication. | [
"cs.IT",
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] | null | [
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] | null | null | null |
13468795 | 0905.0203 | 2009-05-02 | ICTD for Healthcare in Ghana: Two Parallel Case Studies | This paper examines two parallel case studies to promote remote medical consultation in Ghana. These projects, initiated independently by different researchers in different organizations, both deployed ICT solutions in the same medical community in the same year. The Ghana Consultation Network currently has over 125 us... | [
"cs.HC"
] | null | [
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{
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{
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15067027 | 0905.0266 | 2009-05-03 | Gaussian Belief with dynamic data and in dynamic network | In this paper we analyse Belief Propagation over a Gaussian model in a dynamic environment. Recently, this has been proposed as a method to average local measurement values by a distributed protocol ("Consensus Propagation", Moallemi & Van Roy, 2006), where the average is available for read-out at every single node. In... | [
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"cond-mat.stat-mech",
"cs.IT",
"math.IT",
"physics.soc-ph"
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] | null | null | null |
390242 | 0905.0304 | 2009-05-04 | A simplified Binet formula for k-generalized Fibonacci numbers | We present a particularly nice Binet-style formula that can be used to produce the k-generalized Fibonacci numbers (that is, the Tribonaccis, Tetranaccis, etc). Furthermore, we show that in fact one needs only take the integer closest to the first term of this Binet-style formula to generate the desired sequence. These... | [
"math.NT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8486550 | 0905.0318 | 2009-05-04 | Mod-Poisson convergence in probability and number theory | Building on earlier work introducing the notion of "mod-Gaussian" convergence of sequences of random variables, which arises naturally in Random Matrix Theory and number theory, we discuss the analogue notion of "mod-Poisson" convergence. We show in particular how it occurs naturally in analytic number theory in the cl... | [
"math.NT",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
115155974 | 0905.0273 | 2009-05-04 | Strong and weak divergence in finite time of Euler's method for stochastic differential equations with non-globally Lipschitz continuous coefficients | The stochastic Euler scheme is known to converge to the exact solution of a stochastic differential equation with globally Lipschitz continuous drift and diffusion coefficient. Recent results extend this convergence to coefficients which grow at most linearly. For superlinearly growing coefficients finite-time converge... | [
"math.NA",
"math.PR"
] | null | [
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{
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{
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{
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{
"author_id": "a jentzen_1",
"name": "Arnulf Jentzen",
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13402997 | 0905.0483 | 2009-05-04 | Sparse Poisson Intensity Reconstruction Algorithms | The observations in many applications consist of counts of discrete events, such as photons hitting a dector, which cannot be effectively modeled using an additive bounded or Gaussian noise model, and instead require a Poisson noise model. As a result, accurate reconstruction of a spatially or temporally distributed ph... | [
"math.OC",
"math.ST",
"stat.TH"
] | null | [
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] | [] | [
{
"author_id": "z harmany_1",
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{
"author_id": "r marcia_1",
"name": "Roummel [\"F.\"] Marcia",
"publication_history": null,
"h_index": null,
"... | null |
7967436 | 0905.0374 | 2009-05-04 | Interference Alignment with Limited Feedback | We consider single-antenna interference networks where M sources, each with an average transmit power of P/M, communicate with M destinations over frequency-selective channels (with L taps each) and each destination has perfect knowledge of its channels from each of the sources. Assuming that there exist error-free non... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9909049 | 0905.0385 | 2009-05-04 | Diversity-Multiplexing tradeoff of the Two-User Interference Channel | Diversity-Multiplexing tradeoff (DMT) is a coarse high SNR approximation of the fundamental tradeoff between data rate and reliability in a slow fading channel. In this paper, we characterize the fundamental DMT of the two user single antenna Gaussian interference channel. We show that the class of multilevel superposi... | [
"cs.IT",
"math.IT"
] | null | [
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] | [] | [
{
"author_id": "a raja_2",
"name": "Adnan Raja",
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{
"author_id": "p viswanath_1",
"name": "Pramod Viswanath",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
115159657 | 0905.0345 | 2009-05-04 | Maslov index in semi-Riemannian submersions | We study focal points and Maslov index of a horizontal geodesic $\gamma:I\to M$ in the total space of a semi-Riemannian submersion $\pi:M\to B$ by determining an explicit relation with the corresponding objects along the projected geodesic $\pi\circ\gamma:I\to B$ in the base space. We use this result to calculate the f... | [
"math.DG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118387755 | 0905.0340 | 2009-05-04 | Using Spectral Flux Ratios to Standardize SN Ia Luminosities | We present a new method to standardize Type Ia supernova (SN Ia) luminosities to ~<0.13 magnitudes using flux ratios from a single flux-calibrated spectrum per SN. Using Nearby Supernova Factory spectrophotomery of 58 SNe Ia, we performed an unbiased search for flux ratios which correlate with SN Ia luminosity. After d... | [
"astro-ph.CO",
"astro-ph.IM"
] | null | [
"target.author.publication_history",
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] | [
{
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] | [
{
"author_id": "s bailey_1",
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{
"author_id": "g aldering_1",
"name": "Greg Aldering",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15132381 | 0905.0529 | 2009-05-05 | What is the relationship between photospheric flow fields and solar flares? | We estimated photospheric velocities by separately applying the Fourier Local Correlation Tracking (FLCT) and Differential Affine Velocity Estimator (DAVE) methods to 2708 co-registered pairs of SOHO/MDI magnetograms, with nominal 96-minute cadence and ~2" pixels, from 46 active regions (ARs) from 1996-1998 over the ti... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
51975152 | 0905.0619 | 2009-05-05 | On the Sensitivity of Noncoherent Capacity to the Channel Model | The noncoherent capacity of stationary discrete-time fading channels is known to be very sensitive to the fine details of the channel model. More specifically, the measure of the set of harmonics where the power spectral density of the fading process is nonzero determines if capacity grows logarithmically in SNR or slo... | [
"cs.IT",
"math.IT"
] | null | [
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] | [] | [
{
"author_id": "v morgenshtern_1",
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{
"author_id": "g durisi_1",
"name": "Giuseppe Durisi",
"publication_history": null,
"h_index": null,
... | null |
4025249 | 0905.0564 | 2009-05-05 | Selective Cooperative Relaying over Time-Varying Channels | In selective cooperative relaying only a single relay out of the set of available relays is activated, hence the available power and bandwidth resources are efficiently utilized. However, implementing selective cooperative relaying in time-varying channels may cause frequent relay switchings that deteriorate the overal... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d michalopoulos_1",
"name": "Diomidis [\"S.\"] Michalopoulos",
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{
"author_id": "a lioumpas_1",
"name": "Athanasios [\"S.\"] Lioumpas",
"publication_history": null,
"h... | null |
8301131 | 0906.5007 | 2009-05-05 | Spread of Misinformation in Social Networks | We provide a model to investigate the tension between information aggregation and spread of misinformation in large societies (conceptualized as networks of agents communicating with each other). Each individual holds a belief represented by a scalar. Individuals meet pairwise and exchange information, which is modeled... | [
"cs.IT",
"cs.DC",
"math.IT",
"math.PR"
] | null | [
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{
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"name": "Daron Acemoglu",
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{
"author_id": "a ozdaglar_1",
"name": "Asuman [\"E.\"] Ozdaglar",
"publication_history": null,
"h_index": null,
"num_pa... | null |
206738057 | 0905.0642 | 2009-05-05 | Simultaneous support recovery in high dimensions: Benefits and perils of block $\ell_1/\ell_\infty$-regularization | Consider the use of $\ell_{1}/\ell_{\infty}$-regularized regression for joint estimation of a $\pdim \times \numreg$ matrix of regression coefficients. We analyze the high-dimensional scaling of $\ell_1/\ell_\infty$-regularized quadratic programming, considering both consistency in $\ell_\infty$-norm, and variable sele... | [
"math.ST",
"cs.IT",
"math.IT",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16063293 | 0905.0724 | 2009-05-06 | sFit: a method for background subtraction in maximum likelihood fit | This paper presents a statistical method to subtract background in maximum likelihood fit, without relying on any separate sideband or simulation for background modeling. The method, called sFit, is an extension to the sPlot technique originally developed to reconstruct true distribution for each date component. The sW... | [
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7542386 | 0905.0854 | 2009-05-06 | The Link Between SCUBA and Spitzer: Cold Galaxies at z<1 | We show that the far-IR properties of distant Luminous and Ultraluminous InfraRed Galaxies (LIRGs and ULIRGs) are on average divergent from analogous sources in the local Universe. Our analysis is based on Spitzer MIPS and IRAC data of L_IR>10^10 L_solar, 70um-selected objects in the 0.1<z<2 redshift range and supporte... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11225028 | 0905.0940 | 2009-05-06 | A Large-Deviation Analysis of the Maximum-Likelihood Learning of Markov Tree Structures | The problem of maximum-likelihood (ML) estimation of discrete tree-structured distributions is considered. Chow and Liu established that ML-estimation reduces to the construction of a maximum-weight spanning tree using the empirical mutual information quantities as the edge weights. Using the theory of large-deviations... | [
"stat.ML",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
640752 | 0905.0887 | 2009-05-06 | Towards Quantum Chemistry on a Quantum Computer | The fundamental problem faced in quantum chemistry is the calculation of molecular properties, which are of practical importance in fields ranging from materials science to biochemistry. Within chemical precision, the total energy of a molecule as well as most other properties, can be calculated by solving the Schrodin... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7592668 | 0905.0884 | 2009-05-06 | Adaptive Dantzig density estimation | This paper deals with the problem of density estimation. We aim at building an estimate of an unknown density as a linear combination of functions of a dictionary. Inspired by Cand\`es and Tao's approach, we propose an $\ell_1$-minimization under an adaptive Dantzig constraint coming from sharp concentration inequaliti... | [
"math.ST",
"stat.TH"
] | null | [
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{
"corpus_id": "187614",
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{
"corpus_id": "7048603",
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{
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},
{
"author_id": "e pennec_1",
"name": "Erwan [\"Le\"] Pennec",
"publication_history": null,
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"num_papers": n... | null |
11890625 | 0905.0796 | 2009-05-06 | Elastic-Net Regularization: Error estimates and Active Set Methods | This paper investigates theoretical properties and efficient numerical algorithms for the so-called elastic-net regularization originating from statistics, which enforces simultaneously l^1 and l^2 regularization. The stability of the minimizer and its consistency are studied, and convergence rates for both a priori an... | [
"math.NA"
] | null | [
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{
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{
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},
{
"author_id": "d lorenz_1",
"name": "Dirk [\"A.\"] Lorenz",
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"h_index": null,
"num_papers": null,
... | null |
12370731 | 0905.0721 | 2009-05-06 | Diversity-Multiplexing Tradeoff in Fading Interference Channels | We analyze two-user single-antenna fading interference channels with perfect receive channel state information (CSI) and no transmit CSI. We compute the diversity-multiplexing tradeoff (DMT) region of a fixed-power-split Han and Kobayashi (HK)-type superposition coding scheme and provide design criteria for the corresp... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
43378533 | 0905.0902 | 2009-05-06 | Exact quantum dynamics of a bosonic Josephson junction | The quantum dynamics of a one-dimensional bosonic Josephson junction is studied by solving the time-dependent many-boson Schr\"odinger equation numerically exactly. Already for weak interparticle interactions and on short time scales, the commonly-employed mean-field and many-body methods are found to deviate substanti... | [
"cond-mat.quant-gas",
"cond-mat.other",
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k sakmann_1",
"name": "Kaspar Sakmann",
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{
"author_id": "a streltsov_1",
"name": "Alexej [\"I.\"] Streltsov",
"publication_history": null,
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"num_p... | null |
14992816 | 0905.0802 | 2009-05-06 | Synthesis of linear quantum stochastic systems via quantum feedback networks | Recent theoretical and experimental investigations of coherent feedback control, the feedback control of a quantum system with another quantum system, has raised the important problem of how to synthesize a class of quantum systems, called the class of linear quantum stochastic systems, from basic quantum optical compo... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "7702386",
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},
{
"corpus_id": "16777",
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] | [
{
"author_id": "h nurdin_1",
"name": "Hendra [\"Ishwara\"] Nurdin",
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}
] | null |
5313968 | 0905.0788 | 2009-05-06 | Path regularity and explicit convergence rate for BSDE with truncated quadratic growth | We consider backward stochastic differential equations with drivers of quadratic growth (qgBSDE). We prove several statements concerning path regularity and stochastic smoothness of the solution processes of the qgBSDE, in particular we prove an extension of Zhang's path regularity theorem to the quadratic growth setti... | [
"math.PR"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "p imkeller_1",
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{
"author_id": "g reis_2",
"name": "Gonçalo [\"Dos\"] Reis",
"publication_history": null,
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"num_papers":... | null |
3112983 | 0905.1093 | 2009-05-07 | Decomposing Coverings and the Planar Sensor Cover Problem | We show that a $k$-fold covering using translates of an arbitrary convex polygon can be decomposed into $\Omega(k)$ covers (using an efficient algorithm). We generalize this result to obtain a constant factor approximation to the sensor cover problem where the ranges of the sensors are translates of a given convex poly... | [
"cs.CG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18794664 | 0905.1043 | 2009-05-07 | Dark Matter with Dirac and Majorana Gaugino Masses | We consider the minimal supersymmetric extension of the Standard Model allowing both Dirac and Majorana gauginos. The Dirac masses are obtained by pairing up extra chiral multiplets: a singlet S for U(1)_Y, a triplet T for SU(2) and an octet O for SU(3) with the respective gauginos. The electroweak symmetry breaking se... | [
"hep-ph",
"astro-ph.CO",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1751903 | 0905.1108 | 2009-05-07 | Maximizing Influence Propagation in Networks with Community Structure | We consider the algorithmic problem of selecting a set of target nodes that cause the biggest activation cascade in a network. In case when the activation process obeys the diminishing returns property, a simple hill-climbing selection mechanism has been shown to achieve a provably good performance. Here we study model... | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.CY"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a galstyan_1",
"name": "A. [\"G.\"] Galstyan",
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},
{
"author_id": "v musoyan_0",
"name": "Vahe [\"L.\"] Musoyan",
"publication_history": null,
"h_index": null,
"num_... | null |
2310204 | 0905.1129 | 2009-05-07 | A proof of Dejean's conjecture | We prove Dejean's conjecture. Specifically, we show that Dejean's conjecture holds for the last remaining open values of n, namely 15 <= n <= 26. | [
"math.CO",
"cs.FL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14999520 | 0905.0946 | 2009-05-07 | The Sarkisov program | Any two birational Mori fibre spaces are connected by a sequence of Sarkisov links. | [
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9250211 | 0905.1112 | 2009-05-07 | Cosmological Constraints on DGP Braneworld Gravity with Brane Tension | We perform a Markov Chain Monte Carlo analysis of the self-accelerating and normal branch of Dvali-Gabadadze-Porrati braneworld gravity. By adopting a parameterized post-Friedmann description of gravity, we utilize all of the cosmic microwave background data, including the largest scales, and its correlation with galax... | [
"astro-ph.CO",
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l lombriser_1",
"name": "Lucas Lombriser",
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"h_index": null,
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},
{
"author_id": "w hu_2",
"name": "Wayne Hu",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
6830989 | 0905.1037 | 2009-05-07 | Flocking of Multi-agent Dynamical Systems Based on Pseudo-leader Mechanism | Flocking behavior of multiple agents can be widely observed in nature such as schooling fish and flocking birds. Recent literature has proposed the possibility that flocking is possible even only a small fraction of agents are informed of the desired position and velocity. However, it is still a challenging problem to ... | [
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15833003 | 0905.1144 | 2009-05-07 | GeV Gamma-Ray Attenuation and the High-Redshift UV Background | We present new calculations of the evolving UV background out to the epoch of cosmological reionization and make predictions for the amount of GeV gamma-ray attenuation by electron-positron pair production. Our results are based on recent semi-analytic models of galaxy formation, which provide predictions of the dust-e... | [
"astro-ph.CO",
"astro-ph.HE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17519822 | 0905.1114 | 2009-05-07 | Follow-up Observations of the Neptune Mass Transiting Extrasolar Planet HAT-P-11b | We have confirmed the existence of the transiting super Neptune extrasolar planet HAT-P-11b. On May 1, 2009 UT the transit of HAT-P-11b was detected at the University of Arizona's 1.55m Kuiper Telescope with 1.7 millimag rms accuracy. We find a central transit time of T_c = 2454952.92534+/-0.00060 BJD; this transit occ... | [
"astro-ph.EP",
"astro-ph.IM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14938639 | 0905.1257 | 2009-05-08 | Positive solutions of nonlinear problems involving the square root of the Laplacian | We consider nonlinear elliptic problems involving a nonlocal operator: the square root of the Laplacian in a bounded domain with zero Dirichlet boundary conditions. For positive solutions to problems with power nonlinearities, we establish existence and regularity results, as well as a priori estimates of Gidas-Spruck ... | [
"math.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6869749 | 0905.1300 | 2009-05-08 | Two-message quantum interactive proofs are in PSPACE | We prove that QIP(2), the class of problems having two-message quantum interactive proof systems, is a subset of PSPACE. This relationship is obtained by means of an efficient parallel algorithm, based on the multiplicative weights update method, for approximately solving a certain class of semidefinite programs. | [
"cs.CC",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2555011 | 0905.1362 | 2009-05-08 | Reliable Process for Security Policy Deployment | We focus in this paper on the problem of configuring and managing network security devices, such as Firewalls, Virtual Private Network (VPN) tunnels, and Intrusion Detection Systems (IDSs). Our proposal is the following. First, we formally specify the security requirements of a given system by using an expressive acces... | [
"cs.CR",
"cs.SE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s preda_1",
"name": "Stere Preda",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "n cuppens-boulahia_1",
"name": "Nora Cuppens-Boulahia",
"publication_history": null,
"h_index": null,
"num_pap... | null |
471712 | 0905.1305 | 2009-05-08 | On the Distribution of the Sum of Gamma-Gamma Variates and Applications in RF and Optical Wireless Communications | The Gamma-Gamma (GG) distribution has recently attracted the interest within the research community due to its involvement in various communication systems. In the context of RF wireless communications, GG distribution accurately models the power statistics in composite shadowing/fading channels as well as in cascade m... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n chatzidiamantis_1",
"name": "Nestor [\"D.\"] Chatzidiamantis",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g karagiannidis_1",
"name": "George [\"K.\"] Karagiannidis",
"publication_history": null... | null |
9100409 | 0905.1187 | 2009-05-08 | The Residual Method for Regularizing Ill-Posed Problems | Although the \emph{residual method}, or \emph{constrained regularization}, is frequently used in applications, a detailed study of its properties is still missing. This sharply contrasts the progress of the theory of Tikhonov regularization, where a series of new results for regularization in Banach spaces has been pub... | [
"math.OC",
"cs.SY"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m grasmair_1",
"name": "Markus Grasmair",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "m haltmeier_1",
"name": "Markus Haltmeier",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
10232502 | 0905.1298 | 2009-05-08 | (Super)integrability from coalgebra symmetry: formalism and applications | The coalgebra approach to the construction of classical integrable systems from Poisson coalgebras is reviewed, and the essential role played by symplectic realizations in this framework is emphasized. Many examples of Hamiltonians with either undeformed or q-deformed coalgebra symmetry are given, and their Liouville s... | [
"math-ph",
"math.MP",
"nlin.SI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18097664 | 0905.1270 | 2009-05-08 | Evolution equations for maximal monotone operators: asymptotic analysis in continuous and discrete time | This survey is devoted to the asymptotic behavior of solutions of evolution equations generated by maximal monotone operators in Hilbert spaces. The emphasis is in the comparison of the continuous time trajectories to sequences generated by implicit or explicit discrete time schemes. The analysis covers weak convergenc... | [
"math.OC",
"math.CA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15480717 | 0905.1198 | 2009-05-08 | EPOS Model and Ultra High Energy Cosmic Rays | Interpretation of extensive air showers (EAS) experiments results is strongly based on air shower simulations. The latter being based on hadronic interaction models, any new model can help for the understanding of the nature of cosmic rays. The EPOS model reproducing all major results of existing accelerator data (incl... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
115171870 | 0905.1340 | 2009-05-08 | Fast Fourier Transforms for Finite Inverse Semigroups | We extend the theory of fast Fourier transforms on finite groups to finite inverse semigroups. We use a general method for constructing the irreducible representations of a finite inverse semigroup to reduce the problem of computing its Fourier transform to the problems of computing Fourier transforms on its maximal su... | [
"math.GR",
"math.RT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m malandro_1",
"name": "Martin [\"E.\"] Malandro",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
96447046 | 0905.1317 | 2009-05-08 | Entanglement Renormalization and Holography | I show how recent progress in real space renormalization group methods can be used to define a generalized notion of holography inspired by holographic dualities in quantum gravity. The generalization is based upon organizing information in a quantum state in terms of scale and defining a higher dimensional geometry fr... | [
"cond-mat.str-el",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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