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- Guillermo Abramson, Marcelo N. Kuperman
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2001

We study an evolutionary version of the Prisoner's Dilemma game, played by agents placed in a small-world network. Agents are able to change their strategy, imitating that of the most successfulâ€¦ (More)

- M. N. Kuperman, Guillermo Abramson
- Physical review letters
- 2001

A model for the spread of an infection is analyzed for different population structures. The interactions within the population are described by small world networks, ranging from ordered lattices toâ€¦ (More)

- Guillermo Abramson, V. M. Kenkre, Terry L. Yates, Robert R. Parmenter
- Bulletin of mathematical biology
- 2003

Traveling waves are analyzed in a model of the hantavirus infection in deer mice. The existence of two kinds of wave phenomena is predicted. An environmental parameter governs a transition betweenâ€¦ (More)

- Guillermo Abramson, V. M. Kenkre
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2002

We present a model of the infection of Hantavirus in deer mouse, Peromyscus maniculatus, based on biological observations of the system in the North American Southwest. The results of the analysisâ€¦ (More)

We present numerical results based on a simplified ecological system in evolution, showing features of extinction similar to that claimed for the biosystem on Earth. In the model each speciesâ€¦ (More)

- Luca Giuggioli, Guillermo Abramson, V. M. Kenkre, Gerardo SuzÃ¡n, Erika MarcÃ©, Terry L. Yates
- Bulletin of mathematical biology
- 2005

Simple random walk considerations are used to interpret rodent population data collected in Hantavirus-related investigations in Panama regarding the short-tailed cane mouse, Zygodontomys brevicauda.â€¦ (More)

- Luca Giuggioli, Guillermo Abramson, V. M. Kenkre, Robert R. Parmenter, Terry L. Yates
- Journal of theoretical biology
- 2006

A theory is provided for the estimation of home ranges of animals from displacement measurement procedures. The theoretical tool used is the Fokker-Planck equation, its characteristic quantitiesâ€¦ (More)

We study a model of associative memory based on a neural network with small-world structure. The efficacy of the network to retrieve one of the stored patterns exhibits a phase transition at a finiteâ€¦ (More)

- M. F. Laguna, Guillermo Abramson, DamiÃ¡n H. Zanette
- Complexity
- 2004

We study a model for social influence in which the agentsâ€™ opinion is a continuous variable [G. Weisbuch et al., Complexity 2002, 7(2), 55]. The convergent opinion adjustment process takes place as aâ€¦ (More)

We analyze a system of globally coupled logistic maps with asynchronous updating. We show that its dynamics differs considerably from that of the synchronous case. For growing values of the couplingâ€¦ (More)