3 papers
cs.CE2005
Modelling investment in artificial stock markets: Analytical and Numerical Results
Roberto da Silva, Alexandre Tavares Baraviera, Silvio R. Dahmen
In this article we study the behavior of a group of economic agents in the context of cooperative game theory, interacting according to rules based on the Potts Model with suitable…
math-ph2004
Brownian Motion Limit of Random Walks in Symetric Non-Homogeneous Media
Domingos H. U. Marchetti, Roberto da Silva
The phenomenon of macroscopic homogenization is illustrated with a simple example of diffusion. We examine the conditions under which a --dimensional simple random walk in a sym…
cond-mat.stat-mech2004
Local persistense and blocking in the two dimensional Blume-Capel Model
Roberto da Silva, Silvio R. Dahmen
In this letter we study the local persistence of the two--dimensional Blume-- Capel Model by extension of the concept of Glauber dynamics. We verify that for any value of the ratio…