16 citations · 33 across the 5 of their papers we have counts for
7 papers
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…
Static Versus Dynamic Friction: The Role of Coherence
Z. Farkas, S. R. Dahmen, D. E. Wolf
A simple model for solid friction is analyzed. It is based on tangential springs representing interlocked asperities of the surfaces in contact. Each spring is given a maximal stra…
Coupling between static friction force and torque
Silvio R. Dahmen, Zeno Farkas, Haye Hinrichsen +1
We show that the static friction force which must be overcome to render a sticking contact sliding is reduced if an external torque is also exerted. As a test system we study a pla…
Coupling between static friction force and torque for a tripod
Silvio R. Dahmen, Haye Hinrichsen, Andrey Lysov +1
If a body is resting on a flat surface, the maximal static friction force before motion sets in is reduced if an external torque is also applied. The coupling between the static fr…
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…
Directed Percolation and the Golden Ratio
Stephan M Dammer, Silvio R Dahmen, Haye Hinrichsen
Applying the theory of Yang-Lee zeros to nonequilibrium critical phenomena, we investigate the properties of a directed bond percolation process for a complex percolation parameter…