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19922026
most citedSubgraph Centrality in Complex Networks

1.3k citations

Showing 2015Show all

123 papers · 1 filter

cond-mat.soft2015★ 7 cited

Phase behaviour and correlations of parallel hard squares: From highly confined to bulk systems

Miguel Gonzalez-Pinto, Yuri Martinez-Raton, Szabolcs Varga +2

We study a fluid of two-dimensional parallel hard squares in bulk and under confinement in channels, with the aim of evaluating the performance of Fundamental-Measure Theory (FMT).…

math.NA2015★ 5 cited

Array imaging of localized objects in homogeneous and heterogeneous media

Anwei Chai, Miguel Moscoso, George Papanicolaou

We present a comprehensive study of the resolution and stability properties of sparse promoting optimization theories applied to narrow band array imaging of localized scatterers.…

cond-mat.mes-hall2015★ 9 cited

Evidence of radiation-driven Landau states in 2D electron systems: magnetoresistance oscillations phase shift

Jesus Inarrea

We provide the ultimate explanation of one of the core features of microwave-induced magnetoresistance oscillations in high mobility two dimensional electron systems: the 1/4-cycle…

math.OC2015★ 17 cited

A Verification Theorem for Threshold-Indexability of Real-State Discounted Restless Bandits

José Niño-Mora

The Whittle index, which characterizes optimal policies for controlling certain single restless bandit projects (a Markov decision process with two actions: active and passive) is…

math.NA2015★ 28 cited

Adaptive multi-stage integrators for optimal energy conservation in molecular simulations

Mario Fernández-Pendás, Elena Akhmatskaya, J. M. Sanz-Serna

We introduce a new Adaptive Integration Approach (AIA) to be used in a wide range of molecular simulations. Given a simulation problem and a step size, the method automatically cho…

cond-mat.stat-mech2015★ 16 cited

Groups, Information Theory and Einstein's Likelihood Principle

Gabriele Sicuro, Piergiulio Tempesta

We propose a unifying picture where the notion of generalized entropy is related to information theory by means of a group-theoretical approach. The group structure comes from the…

astro-ph.IM2015★ 11 cited

CTA telescopes as deep-space lasercom ground receivers

Alberto Carrasco-Casado, Jose Manuel Sanchez-Pena, Ricardo Vergaz

The amount of scientific data to be transmitted from deep-space probes is very limited due to RF-communications constraints. Free-space optical communication can alleviate this bot…

math.CA2015★ 32 cited

The weak- property of harmonic and -harmonic measures implies uniform rectifiability

Steve Hofmann, Phi Le, José María Martell +1

Let , , be an Ahlfors-David regular set of dimension . We show that the weak- property of harmonic measure, for the open set $Ω:= \m…

math.AG2015★ 22 cited

On some conjectures about free and nearly free divisors

Enrique Artal Bartolo, Leire Gorrochategui, Ignacio Luengo +1

In this paper infinite families of examples of irreducible free and nearly free curves in the complex projective plane which are not rational curves and whose local singularites ca…

math.DS2015★ 2 cited

Computing normal forms and formal invariants of dynamical systems by means of word series

A. Murua, J. M. Sanz-Serna

We show how to use extended word series in the reduction of continuous and discrete dynamical systems to normal form and in the computation of formal invariants of motion in Hamilt…

cs.NI2015★ 2 cited

Deseeding Energy Consumption of Network Stacks

Iñaki Ucar, Arturo Azcorra

Regular works on energy efficiency strategies for wireless communications are based on classical energy models that account for the wireless card only. Nevertheless, there is a non…

hep-th2015★ 4 cited

Hamiltonian dynamics of the parametrized electromagnetic field

J. Fernando Barbero, Juan Margalef-Bentabol, Eduardo J. S. Villaseñor

We study the Hamiltonian formulation for a parametrized electromagnetic field with the purpose of clarifying the interplay between parametrization and gauge symmetries. We use a ge…

math.PR2015★ 94 cited

Randomized Hamiltonian Monte Carlo

Nawaf Bou-Rabee, Jesus Maria Sanz-Serna

Tuning the durations of the Hamiltonian flow in Hamiltonian Monte Carlo (also called Hybrid Monte Carlo) (HMC) involves a tradeoff between computational cost and sampling quality,…

math.CV2015★ 14 cited

Nonlinear Beltrami operators, Schauder estimates and bounds for the Jacobian

Kari Astala, Albert Clop, Daniel Faraco +2

We provide Schauder estimates for nonlinear Beltrami equations and lower bounds of the Jacobians for homeomorphic solutions. The results were announced in arXiv:1412.4046 but here…

quant-ph2015★ 139 cited

Genuine quantum coherence

Julio I. de Vicente, Alexander Streltsov

Any quantum resource theory is based on free states and free operations, i.e., states and operations which can be created and performed at no cost. In the resource theory of cohere…

math.DG2015★ 19 cited

Higgs bundles, the Toledo invariant and the Cayley correspondence

Olivier Biquard, Oscar Garcia-Prada, Roberto Rubio

We define the Toledo invariant of a G-Higgs bundle on a Riemann surface, where G is a real semisimple group of Hermitian type, and we prove a Milnor-Wood type bound for this invari…

physics.soc-ph2015★ 16 cited

Concurrent enhancement of percolation and synchronization in adaptive networks

Young-Ho Eom, Stefano Boccaletti, Guido Caldarelli

Co-evolutionary adaptive mechanisms are not only ubiquitous in nature, but also beneficial for the functioning of a variety of systems. We here consider an adaptive network of osci…

math.CA2015★ 30 cited

Christoffel transformations for matrix orthogonal polynomials in the real line and the non-Abelian 2D Toda lattice hierarchy

Carlos Álvarez-Fernández, Gerardo Ariznabarreta, Juan Carlos García-Ardila +2

Given a matrix polynomial , matrix bi-orthogonal polynomials with respect to the sesquilinear form $\langle P(x),Q(x)\rangle_W=\int P(x) W(x)\operatorname{d}μ(x)(Q(x))^{\top}…

cs.IT2015

Direct Polarization for q-ary Source and Channel Coding

Ángel Bravo-Santos

It has been shown that an extension of the basic binary polar transformation also polarizes over finite fields. With it the direct encoding of q-ary sources and channels is a proce…

stat.CO2015★ 144 cited

Generalized Multiple Importance Sampling

Víctor Elvira, Luca Martino, David Luengo +1

Importance Sampling methods are broadly used to approximate posterior distributions or some of their moments. In its standard approach, samples are drawn from a single proposal dis…

math.AG2015★ 19 cited

Higgs bundles for real groups and the Hitchin-Kostant-Rallis section

Oscar García-Prada, Ana Peón-Nieto, S. Ramanan

We consider the moduli space of polystable -twisted -Higgs bundles over a compact Riemann surface , where is a real reductive Lie group, and is a holomorphic line…

math-ph2015★ 11 cited

Haantjes Structures for the Jacobi-Calogero Model and the Benenti Systems

Giorgio Tondo, Piergiulio Tempesta

In the context of the theory of symplectic-Haantjes manifolds, we construct the Haantjes structures of generalized Stäckel systems and, as a particular case, of the quasi-bi-Hamilt…

math-ph2015★ 51 cited

Quantum Tomography twenty years later

M. Asorey, A. Ibort, G. Marmo +1

A sample of some relevant developments that have taken place during the last twenty years in classical and quantum tomography are displayed. We will present a general conceptual fr…

math-ph2015★ 21 cited

The Topology and Geometry of self-adjoint and elliptic boundary conditions for Dirac and Laplace operators

M. Asorey, A. Ibort, G. Marmo

The theory of self-adjoint extensions of first and second order elliptic differential operators on manifolds with boundary is studied via its most representative instances: Dirac a…