316 citations · 2.7k across the 94 of their papers we have counts for
5 papers · 1 filter
Conserved sandpile with a variable height restriction
Vanuildo Silva de Carvalho, Alvaro de Almeida Caparica, Ronald Dickman
We study a restricted-height version of the one-dimensional Oslo sandpile with conserved density, using periodic boundary conditions. Each site has a limiting height which can be e…
Analysis of an information-theoretic model for communication
Ronald Dickman, Nicholas R. Moloney, Eduardo G. Altmann
We study the cost-minimization problem posed by Ferrer i Cancho and Solé in their model of communication that aimed at explaining the origin of Zipf's law [PNAS 100, 788 (2003)]. D…
An epidemic process mediated by a decaying diffusing signal
Fernando P. Faria, Ronald Dickman
We study a stochastic epidemic model consisting of elements (organisms in a community or cells in tissue) with fixed positions, in which damage or disease is transmitted by diffusi…
A symbiotic two-species contact process
Marcelo Martins de Oliveira, Renato Vieira Dos Santos, Ronald Dickman
We study a contact process (CP) with two species that interact in a symbiotic manner. In our model, each site of a lattice may be vacant or host individuals of species A and/or B;…
Discontinuous phase transition in a dimer lattice gas
Ronald Dickman
I study a dimer model on the square lattice with nearest-neighbor exclusion as the only interaction. Detailed simulations using tomographic entropic sampling show that as the chemi…