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- Sapienza University of RomeIT132 papers
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21 papers · 1 filter
Spontaneous velocity alignment in Motility-induced Phase Separation
Lorenzo Caprini, Umberto Marini Bettolo Marconi, Andrea Puglisi
We study a system of purely repulsive spherical self-propelled particles in the minimal set-up inducing Motility-Induced Phase Separation (MIPS). We show that, even if explicit ali…
Message-passing theory for cooperative epidemics
Byungjoon Min, Claudio Castellano
The interaction among spreading processes on a complex network is a nontrivial phenomenon of great importance. It has recently been realized that cooperative effects among infectiv…
Iterative reconstruction of signals on graph
Emanuele Brugnoli, Elena Toscano, Calogero Vetro
We propose an iterative algorithm to interpolate graph signals from only a partial set of samples. Our method is derived from the well known Papoulis-Gerchberg algorithm by conside…
Effective equations for reaction coordinates in polymer transport
Marco Baldovin, Fabio Cecconi, Angelo Vulpiani
In the framework of the problem of finding proper reaction coordinates (RCs) for complex systems and their effective evolution equations, we consider the case study of a polymer ch…
Persymmetric Jacobi matrices with square-integer eigenvalues and dispersionless mass-spring chains
Ruggero Vaia, Lidia Spadini
A real persymmetric Jacobi matrix of order whose eigenvalues are is presented, with entries given as explicit functions of . Besides the possible us…
Pulse solutions of the fractional effective models of the Fermi-Pasta-Ulam lattice with long-range interactions
Gervais Nazaire Beukam Chendjou, Jean Pierre Nguenang, Andrea Trombettoni +3
We study analytical solutions of the Fractional Boussinesq Equation (FBE), which is an effective model for the Fermi-Pasta-Ulam (FPU) one-dimensional lattice with long-range coupli…