317 citations
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8 papers · 1 filter
Some Remarks on the Geodesic Completeness of Compact Nonpositively Curved Spaces
Pedro Ontaneda
We make some remarks on the existence of a geodesically complete core for any compact non-positively curved space.
On the Field Dependence of the Interface Energy in Af/FM Bilayers
J. R. L. de Almeida, J. R. Steiner, S. M. Rezende
In the investigations of antiferromagnetic (AF)/ ferromagnetic (FM) bilayer samples, often distinct experimental techniques yield different values for the measured exchange anisotr…
Quantifying a certain advantage law: minority game with above the rules agents
J. R. L. de Almeida, J. Menche
In this work the properties of minority games containing agents which try to winning all the time are studied by means of computational simulations. We have considered several ways…
Stochastic description of the dynamics of the random-exchange Heisenberg chain
M. H. Vainstein, R. Morgado, F. A. Oliveira +2
We study the diffusion process in a Heisenberg chain with correlated spatial disorder, with a power spectrum in the momentum space behaving as , using a stochastic descript…
On the fixed homogeneous circle problem
C. Azevedo, H. Cabral, P. Ontaneda
We give some results about the dynamics of a particle moving in Euclidean three-space under the influence of the gravitational force induced by a fixed homogeneous circle. Our main…
On the Aging Dynamics in an Immune Network Model
Mauro Copelli, Rita M. Zorzenon dos Santos, Daniel A. Stariolo
Recently we have used a cellular automata model which describes the dynamics of a multi-connected network to reproduce the refractory behavior and aging effects obtained in immuniz…