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most citedSubgraph Centrality in Complex Networks

1.3k citations

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71 papers · 1 filter

stat.ME2011

Methods to distinguish between polynomial and exponential tails

Joan del Castillo, Jalila Daoudi, Richard Lockhart

In this article two methods to distinguish between polynomial and exponential tails are introduced. The methods are mainly based on the properties of the residual coefficient of va…

math.PR2011

A short note on the monotonicity of the Erlang C formula in the Halfin-Whitt regime

Bernardo D'Auria

We prove a monotonicity condition satisfied by the Erlang C formula when computed in the Halfin-Whitt regime. This property was recently conjectured in Janssen et al. [2011].

stat.CO2011★ 34 cited

A multi-point Metropolis scheme with generic weight functions

Luca Martino, Victor Pascual Del Olmo, Jesse Read

The multi-point Metropolis algorithm is an advanced MCMC technique based on drawing several correlated samples at each step and choosing one of them according to some normalized we…

quant-ph2011★ 4 cited

Rank-one Quantum Games

T. Cooney, M. Junge, C. Palazuelos +1

In this work we study rank-one quantum games. In particular, we focus on the study of the computability of the entangled value . We show that the value can be efficientl…

quant-ph2011★ 9 cited

Qubism: self-similar visualization of many-body wavefunctions

Javier Rodriguez-Laguna, Piotr Migdał, Miguel Ibáñez Berganza +2

A visualization scheme for quantum many-body wavefunctions is described, which we have termed qubism. Its main property is its recursivity: increasing the number of qubits reflects…

math.NT2011

The least common multiple of random sets of positive integers

Javier Cilleruelo, Juanjo Rué, Paulius Šarka +1

We study the typical behavior of the least common multiple of the elements of a random subset . For example we prove that $\text{lcm}\{a:\ a\in A\}=2^{n(1+…

math.AG2011★ 16 cited

A GIT interpretration of the Harder-Narasimhan filtration

Tomas L. Gomez, Ignacio Sols, Alfonso Zamora

An unstable torsion free sheaf on a smooth projective variety gives a GIT unstable point in certain Quot scheme. To a GIT unstable point, Kempf associates a "maximally destabilizin…

math.AT2011

Minimal algebras and step nilpotent Lie algebras in dimension 7

Giovanni Bazzoni

We use the methods of \cite{BM} to give a classification of dimensional minimal algebras, generated in degree 1, over any field $\bk$ of characteristic $\textrm{char}(\bk)\neq…

math.FA2011★ 1 cited

Positional graphs and conditional structure of weakly null sequences

J. Lopez-Abad, S. Todorcevic

We prove that, unless assuming additional set theoretical axioms, there are no reflexive space without unconditional sequences of density the continuum. We give for every integer $…

cs.NI2011★ 1 cited

Greening File Distribution: Centralized or Distributed?

Kshitiz Verma, Gianluca Rizzo, Antonio Fernández Anta +2

Despite file-distribution applications are responsible for a major portion of the current Internet traffic, so far little effort has been dedicated to study file distribution from…

math.PR2011★ 1 cited

The role of disorder in the dynamics of critical fluctuations of mean field models

Francesca Collet, Paolo Dai Pra

The purpose of this paper is to analyze how the disorder affects the dynamics of critical fluctuations for two different types of interacting particle system: the Curie-Weiss and K…

math.CV2011★ 1 cited

Incomplete Padé approximation and convergence of row sequences of Hermite-Padé approximants

J. Cacoq, B. de la Calle Ysern, G. López Lagomasino

We give a Montessus de Ballore type theorem for row sequences of Hermite-Padé approximations of vector valued analytic functions refining some results in this direction due to P.R.…

math.DG2011★ 2 cited

Smoothness of holonomy covers for singular foliations and essential isotropy

Iakovos Androulidakis, Marco Zambon

Given a singular foliation, we attach an "essential isotropy" group to each of its leaves, and show that its discreteness is the integrability obstruction of a natural Lie algebroi…

stat.CO2011★ 26 cited

Particle-kernel estimation of the filter density in state-space models

Dan Crisan, Joaquín Míguez

Sequential Monte Carlo (SMC) methods, also known as particle filters, are simulation-based recursive algorithms for the approximation of the a posteriori probability measures gener…

cond-mat.mes-hall2011★ 12 cited

The influence of anisotropic gate potentials on the phonon induced spin-flip rate in GaAs quantum dots

Sanjay Prabhakar, Roderick V. N. Melnik, Luis L. Bonilla

We study the anisotropic orbital effect in the electric field tunability of the phonon induced spin-flip rate in quantum dots (QDs). Our study shows that anisotropic gate potential…

math.DG2011★ 1 cited

Reduction of Homogeneous Riemannian Structures

M. Castrillon Lopez, I. Lujan

The goal of this article is the study of homogeneous Riemannian structure tensors within the framework of reduction under a group of isometries. In a first result, is a nor…

cond-mat.mtrl-sci2011★ 114 cited

Hydrodynamic approach to surface pattern formation by ion beams

Mario Castro, Rodolfo Cuerno

On the proper timescale, amorphous solids can flow. Solid flow can be observed macroscopically in glaciers or lead pipes, but it can also be artificially enhanced by creating defec…

physics.soc-ph2011★ 117 cited

Branching Dynamics of Viral Information Spreading

José Luis Iribarren, Esteban Moro

Despite its importance for rumors or innovations propagation, peer-to-peer collaboration, social networking or Marketing, the dynamics of information spreading is not well understo…

math.AG2011★ 1 cited

Rationality and Brauer group of a moduli space of framed bundles

I. Biswas, T. Gómez, V. Muñoz

We prove that the moduli spaces of framed bundles over a smooth projective curve are rational. We compute the Brauer group of these moduli spaces to be zero under some assumption o…

cond-mat.stat-mech2011★ 6 cited

Dynamical Renormalization Group Study for a Class of Non-local Interface Equations

Matteo Nicoli, Rodolfo Cuerno, Mario Castro

We provide a detailed Dynamic Renormalization Group study for a class of stochastic equations that describe non-conserved interface growth mediated by non-local interactions. We co…

math.CA2011

A family of Nikishin systems with periodic recurrence coefficients

Steven Delvaux, Abey López García, Guillermo López Lagomasino

Suppose we have a Nikishin system of measures with the th generating measure of the Nikishin system supported on an interval $Δ_k\subset\er$ with …

cond-mat.mes-hall2011★ 12 cited

Theory of spatially inhomogneous Bloch oscillations in semiconductor superlattices

L. L. Bonilla, M. Álvaro, M. Carretero

In a semiconductor superlattice with long scattering times, damping of Bloch oscillations due to scattering is so small that nonlinearities may compensate it and Bloch oscillations…

cond-mat.mes-hall2011★ 1 cited

Wave fronts, pulses and wave trains in photoexcited superlattices behaving as excitable or oscillatory media

J. I. Arana, L. L. Bonilla, H. T. Grahn

Undoped and strongly photoexcited semiconductor superlattices with field-dependent recombination behave as excitable or oscillatory media with spatially discrete nonlinear convecti…

cond-mat.stat-mech2011★ 20 cited

Ripples in a string coupled to Glauber spins

L L Bonilla, A Carpio, A Prados +1

Each oscillator in a linear chain (a string) interacts with a local Ising spin in contact with a thermal bath. These spins evolve according to Glauber dynamics. Below a critical te…