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- Sapienza University of RomeIT51 papers
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10 papers · 2 filters
Voter models on weighted networks
Andrea Baronchelli, Claudio Castellano, Romualdo Pastor-Satorras
We study the dynamics of the voter and Moran processes running on top of complex network substrates where each edge has a weight depending on the degree of the nodes it connects. F…
Griffiths phases in the contact process on complex networks
Géza Ódor, Róbert Juhász, Claudio Castellano +1
Dynamical processes occurring on top of complex networks have become an exciting area of research. Quenched disorder plays a relevant role in general dynamical processes and phase…
Thresholds for epidemic spreading in networks
Claudio Castellano, Romualdo Pastor-Satorras
We study the threshold of epidemic models in quenched networks with degree distribution given by a power-law. For the susceptible-infected-susceptible (SIS) model the activity thre…
Information-theory-based solution of the inverse problem in classical statistical mechanics
Marco D'Alessandro, Francesco Cilloco
We present a procedure for the determination of the interaction potential from the knowledge of the radial pair distribution function. The method, realized inside an inverse Monte…
Local and average behavior in inhomogeneous superdiffusive media
A. Vezzani, R. Burioni, L. Caniparoli +1
We consider a random walk on one-dimensional inhomogeneous graphs built from Cantor fractals. Our study is motivated by recent experiments that demonstrated superdiffusion of light…
Quasi-stationary states and the range of pair interactions
Andrea Gabrielli, Michael Joyce, Bruno Marcos
"Quasi-stationary" states are approximately time-independent out of equilibrium states which have been observed in a variety of systems of particles interacting by long-range inter…