1.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Autónoma de MadridES613 papers
- Institute of Mathematical SciencesIN550 papers
- Consejo Superior de Investigaciones CientíficasES482 papers
- Universidad Complutense de MadridES354 papers
- Instituto de Ciencia de Materiales de MadridES100 papers
- Instituto de Estructura de la MateriaES87 papers
- Universidad Politécnica de MadridES86 papers
- Universidad de ZaragozaES78 papers
- Centre National de la Recherche ScientifiqueFR69 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT62 papers
- IMDEA NetworksES53 papers
- Universidad de SevillaES51 papers
33 papers · 1 filter
Support Vector Machines with Applications
Javier M. Moguerza, Alberto Muñoz
Support vector machines (SVMs) appeared in the early nineties as optimal margin classifiers in the context of Vapnik's statistical learning theory. Since then SVMs have been succes…
A cosmological model for corrugated graphene sheets
Alberto Cortijo, María A. H. Vozmediano
Defects play a key role in the electronic structure of graphene layers flat or curved. Topological defects in which an hexagon is replaced by an n-sided polygon generate long range…
Effects of topological defects and local curvature on the electronic properties of planar graphene
Alberto Cortijo, María A. H. Vozmediano
A formalism is proposed to study the electronic and transport properties of graphene sheets with corrugations as the one recently synthesized. The formalism is based on coupling th…
Topological defects and electronic properties in graphene
Alberto Cortijo, María A. H. Vozmediano
In this work we will focus on the effects produced by topological disorder on the electronic properties of a graphene plane. The presence of this type of disorder induces curvature…
Mesoscopic structure conditions the emergence of cooperation on social networks
Sergi Lozano, Alex Arenas, Angel Sanchez
We study the evolutionary Prisoner's Dilemma on two social networks obtained from actual relational data. We find very different cooperation levels on each of them that can not be…
-Classical orthogonal polynomials: A general difference calculus approach
R. S. Costas-Santos, F. Marcellan
It is well known that the classical families of orthogonal polynomials are characterized as eigenfunctions of a second order linear differential/difference operator. In this paper…
On the nuclearity of certain Cuntz-Pimsner algebras
Fernando Lledó, Ezio Vasselli
We give a short proof of the nuclearity property of a class of Cuntz-Pimsner algebras associated with a Hilbert A-bimodule M, where A is a separable and nuclear C*-algebra. We assu…
Lower bounds on concurrence and separability conditions
Julio I. de Vicente
We obtain analytical lower bounds on the concurrence of bipartite quantum systems in arbitrary dimensions related to the violation of separability conditions based on local uncerta…
Global defensive k-alliances in graphs
J. A. Rodriguez, J. M. Sigarreta
Let be a simple graph. For a nonempty set , and a vertex , denotes the number of neighbors has in . A nonempty set …
Defensive k-alliances in graphs
J. A. Rodriguez-Velazquez, I. G. Yero, J. M. Sigarreta
Let be a simple graph. For a nonempty set , and a vertex , denotes the number of neighbors has in . A nonempty set …
Existence and topological stability of Fermi points in multilayered graphene
Juan L. Mañes, Francisco Guinea, María A. H. Vozmediano
We study the existence and topological stability of Fermi points in a graphene layer and stacks with many layers. We show that the discrete symmetries (spacetime inversion) stabili…
Offensive alliances in cubic graphs
J. A. Rodriguez, J. M. Sigarreta
An offensive alliance in a graph is a set of vertices where for every vertex in its boundary it holds that the majority of vertices in 's closed neigh…
Magnetoresistivity Modulated Response in Bichromatic Microwave Irradiated Two Dimensional Electron Systems
Jesus Inarrea, Gloria Platero
We analyze the effect of bichromatic microwave irradiation on the magnetoresistivity of a two dimensional electron system. We follow the model of microwave driven Larmor orbits in…
Path integrals and boundary conditions
M. Asorey, A. Ibort, G. Marmo
The path integral approach to quantum mechanics provides a method of quantization of dynamical systems directly from the Lagrange formalism. In field theory the method presents som…
Optimization of soliton ratchets in inhomogeneous sine-Gordon systems
F. G. Mertens, L. Morales-Molina, A. R. Bishop +2
Unidirectional motion of solitons can take place, although the applied force has zero average in time, when the spatial symmetry is broken by introducing a potential , which…
Lagrangian transport through an ocean front in the North-Western Mediterranean Sea
Ana M. Mancho, Emilio Hernandez-Garcia, Des Small +2
We analyze with the tools of lobe dynamics the velocity field from a numerical simulation of the surface circulation in the Northwestern Mediterranean Sea. We identify relevant hyp…
Kinetics of helium bubble formation in nuclear materials
L. L. Bonilla, A. Carpio, J. C. Neu +1
The formation and growth of helium bubbles due to self-irradiation in plutonium has been modelled by a discrete kinetic equations for the number densities of bubbles having ato…
First-principles derivation of density functional formalism for quenched-annealed systems
Luis Lafuente, Jose A. Cuesta
We derive from first principles (without resorting to the replica trick) a density functional theory for fluids in quenched disordered matrices (QA-DFT). We show that the disorder-…
Does the dynamics of sine-Gordon solitons predict active regions of DNA?
Sara Cuenda, Angel Sanchez, Niurka R. Quintero
In this work we analyze the possibility that soliton dynamics in a simple nonlinear model allows functionally relevant predictions of the behaviour of DNA. This suggestion was firs…
Evolution Operators for Linearly Polarized Two-Killing Cosmological Models
J. Fernando Barbero G., Daniel Gómez Vergel, Eduardo J. S. Villaseñor
We give a general procedure to obtain non perturbative evolution operators in closed form for quantized linearly polarized two Killing vector reductions of general relativity with…
Time Scales in Evolutionary Dynamics
Carlos P. Roca, Jose A. Cuesta y Angel Sanchez
Evolutionary game theory has traditionally assumed that all individuals in a population interact with each other between reproduction events. We show that eliminating this restrict…
Multivariate risks and depth-trimmed regions
Ignacio Cascos, Ilya Molchanov
We describe a general framework for measuring risks, where the risk measure takes values in an abstract cone. It is shown that this approach naturally includes the classical risk m…
Vector semi-Fredholm Toeplitz operators and mean winding numbers
Dmitry V. Yakubovich
For a continuous complex-valued function g on the real line without zeros, several notions of a mean winding number are introduced. We give necessary conditions for a Toeplitz oper…
Orientational ordering in hard rectangles: The role of three-body correlations
Yuri Martinez-Raton, Enrique Velasco, Luis Mederos
We investigate the effect of three-body correlations on the phase behavior of hard rectangle two-dimensional fluids. The third virial coefficient, , is incorporated via an equ…