300 citations · 4.6k across the 133 of their papers we have counts for
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Modular Transformations, Order-Chaos Transitions and Pseudo-Random Number Generation
Antonio Bonelli, Stefano Ruffo
Successive pairs of pseudo-random numbers generated by standard linear congruential transformations display ordered patterns of parallel lines. We study the ``ordered'' and ``chaot…
Chaos and Statistical Mechanics in the Hamiltonian Mean Field Model
Vito Latora, Andrea Rapisarda, Stefano Ruffo
We study the dynamical and statistical behavior of the Hamiltonian Mean Field (HMF) model in order to investigate the relation between microscopic chaos and phase transitions. HMF…
Modulational Estimate for Fermi-Pasta-Ulam Chain Lyapunov Exponents
Thierry Dauxois, Stefano Ruffo, Alessandro Torcini
In the framework of the Fermi-Pasta-Ulam (FPU) model, we show a simple method to give an accurate analytical estimation of the maximal Lyapunov exponent at high energy density. The…
Transition between immune and disease states in a cellular automaton model of clonal immune response
Michele Bezzi, Franco Celada, Stefano Ruffo +1
In this paper we extend the Celada-Seiden (CS) model of the humoral immune response to include infectious virus and cytotoxic T lymphocytes (cellular response). The response of the…
Exact solutions in the FPU oscillator chain
P. Poggi, S. Ruffo
After a brief comprehensive review of old and new results on the well known Fermi-Pasta-Ulam (FPU) conservative system of nonlinearly coupled oscillators, we present a compact…
Universal diffusion near the golden chaos border
S. Ruffo, D. L. Shepelyansky
We study local diffusion rate in Chirikov standard map near the critical golden curve. Numerical simulations confirm the predicted exponent for the power law decay of …