14 citations · 32 across the 6 of their papers we have counts for
6 papers
Mapping the train model for earthquakes onto the stochastic sandpile model
C. V. Chianca, J. S. S. Martins, P. M. C. de Oliveira
We perform a computational study of a variant of the ``train'' model for earthquakes [PRA 46, 6288 (1992)], where we assume a static friction that is a stochastic function of posit…
Simulated self-organisation of death by inherited mutations
J. S. Sa Martins, D. Stauffer, P. M. C. de Oliveira +1
An agent-based computer simulation of death by inheritable mutations in a changing environment shows a maximal population, or avoids extinction, at so intermediate mutation rate of…
Thermodynamic behavior of a phase transition in a model for sympatric speciation
K. Luz-Burgoa, S. Moss de Oliveira, Veit Schwämmle +1
We investigate the macroscopic effects of the ingredients that drive the origin of species through sympatric speciation. In our model, sympatric speciation is obtained as we tune u…
Sharp gene pool transition in a population affected by phenotype-based selective hunting
E. Brigatti, J. S. Sa' Martins, I. Roditi
We use a microscopic model of population dynamics, a modified version of the well known Penna model, to study some aspects of microevolution. This research is motivated by recent r…
Scaling properties of the Penna model
E. Brigatti, J. S. Sa' Martins, I. Roditi
We investigate the scaling properties of the Penna model, which has become a popular tool for the study of population dynamics and evolutionary problems in recent years. We find th…
Precursory dynamics in threshold systems
J. S. Sá Martins, J. B. Rundle, M. Anghel +1
A precursory dynamics, motivated by the analysis of recent experiments on solid-on-solid friction, is introduced in a continuous cellular automaton that mimics the essential physic…