Exploració per autor "Pastor Satorras, Romualdo"
Ara es mostren els items 29-48 de 134
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Diffusion-annihilation processes in complex networks
(2005-05-10)
Article
Accés obertWe present a detailed analytical study of the A+A¿/0 diffusion-annihilation process in complex networks. By means of microscopic arguments, we derive a set of rate equations for the density of A particles in vertices of a ... -
Dipolar interactions induced order in assemblies of magnetic particles
(2000-10-27)
Article
Accés obertWe discuss the appearance of ordered structures in assemblies of magnetic particles. The phenomenon occurs when dipolar interactions and the thermal motion of the particles compete, and is mediated by screening and excluded ... -
Distinct types of eigenvector localization in networks
(Macmillan Publishers, 2016-01-12)
Article
Accés obertThe spectral properties of the adjacency matrix provide a trove of information about the structure and function of complex networks. In particular, the largest eigenvalue and its associated principal eigenvector are crucial ... -
Dynamical and correlation properties of the Internet
(American Institute of Physics (AIP), 2001-11)
Article
Accés obertThe description of the Internet topology is an important open problem, recently tackled with the introduction of scale-free networks. We focus on the topological and dynamical properties of real Internet maps in a three-year ... -
Dynamical patterns of epidemic outbreaks in complex heterogeneous networks
(2005-03-10)
Article
Accés obertWe present a thorough inspection of the dynamical behavior of epidemic phenomena in populations with complex and heterogeneous connectivity patterns. We show that the growth of the epidemic prevalence is virtually instantaneous ... -
Effect of risk perception on epidemic spreading in temporal networks
(American Chemical Society (ACS), 2018-01-31)
Article
Accés obertMany progresses in the understanding of epidemic spreading models have been obtained thanks to numerous modeling efforts and analytical and numerical studies, considering host populations with very different structures and ... -
Effects of heterogeneous social interactions on flocking dynamics
(2018-02-08)
Article
Accés obertSocial relationships characterize the interactions that occur within social species and may have an important impact on collective animal motion. Here, we consider a variation of the standard Vicsek model for collective ... -
Effects of local population structure in a reaction-diffusion model of a contact process on metapopulation networks
(2013-10-30)
Article
Accés obertWe investigate the effects of local population structure in reaction-diffusion processes representing a contact process (CP) on metapopulations represented as complex networks. Considering a model in which the nodes of a ... -
Effects of mobility on ordering dynamics
(2009-11)
Article
Accés restringit per política de l'editorialModels of ordering dynamics allow us to understand natural systems in which an initially disordered population homogenizes some traits via local interactions. The simplest of these models, with wide applications ranging ... -
Effects of temporal correlations in social multiplex networks
(Macmillan Publishers, 2017-08-17)
Article
Accés obertMulti-layered networks represent a major advance in the description of natural complex systems, and their study has shed light on new physical phenomena. Despite its importance, however, the role of the temporal dimension ... -
Eigenvector localization in real networks and its implications for epidemic spreading
(2018-02-10)
Article
Accés obertThe spectral properties of the adjacency matrix, in particular its largest eigenvalue and the associated principal eigenvector, dominate many structural and dynamical properties of complex networks. Here we focus on the ... -
Entropy of form and hierarchic organization
(1992)
Capítol de llibre
Accés restringit per decisió de l'autorThe use of the Theory of Information as a mathematical tool for the understanding of complex systems allows the application of the MaxEnt Principle as a criterion for the prediction of the final stationary states. The ... -
Epidemic dynamics and endemic states in complex networks
(2001-05-22)
Article
Accés obertWe study by analytical methods and large scale simulations a dynamical model for the spreading of epidemics in complex networks. In networks with exponentially bounded connectivity we recover the usual epidemic behavior ... -
Epidemic dynamics in finite size scale-free networks
(American Institute of Physics (AIP), 2002-03)
Article
Accés obertMany real networks present a bounded scale-free behavior with a connectivity cutoff due to physical constraints or a finite network size. We study epidemic dynamics in bounded scale-free networks with soft and hard ... -
Epidemic outbreaks in complex heterogeneous networks
(Springer, 2002-04)
Article
Accés obertWe present a detailed analytical and numerical study for the spreading of infections with acquired immunity in complex population networks. We show that the large connectivity fluctuations usually found in these networks ... -
Epidemic processes in complex networks
(2015-08-31)
Article
Accés obertIn recent years the research community has accumulated overwhelming evidence for the emergence of complex and heterogeneous connectivity patterns in a wide range of biological and sociotechnical systems. The complex ... -
Epidemic spreading in complex networks with degree correlations
(2003)
Capítol de llibre
Accés restringit per política de l'editorialWe review the behavior of epidemic spreading on complex networks in which there are explicit correlations among the degrees of connected vertices. -
Epidemic spreading in correlated complex networks
(2002-10)
Article
Accés obertWe study a dynamical model of epidemic spreading on complex networks in which there are explicit correlations among the node’s connectivities. For the case of Markovian complex networks, showing only correlations between ... -
Epidemic spreading in scale-free networks
(American Institute of Physics (AIP), 2001-04-02)
Article
Accés obertThe Internet has a very complex connectivity recently modeled by the class of scale-free networks. This feature, which appears to be very efficient for a communications network, favors at the same time the spreading of ... -
Epidemic thresholds of the susceptible-infected-susceptible model on networks: a comparison of numerical and theoretical results
(2012-10-15)
Article
Accés obertRecent work has shown that different theoretical approaches to the dynamics of the susceptible-infected-susceptible (SIS) model for epidemics lead to qualitatively different estimates for the position of the epidemic ...
