Replicators with Hebb interactions |
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| Authors: | VM de Oliveira |
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| Institution: | (1) Instituto de Fısica de S ao Carlos, Universidade de S ao Paulo, Caixa Postal 369, 13560-970, S ao Carlos SP, Brazil, BR |
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| Abstract: | We do an analytical study of the statistical properties of an ecosystem composed of species that are coupled via pairwise interactions that are given by the Hebb rule and have deterministic self-interactions u. In the model each species is characterized by an infinite set of p = αN traits. As one of our main results, we observe that the ecosystem becomes less cooperative as the complexity of species (number
of traits) is increased.
Received 23 September 2002 Published online 4 February 2003
RID="a"
ID="a"e-mail: viviane@if.sc.usp.br |
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| Keywords: | PACS 87 10 +e General theory and mathematical aspects – 87 23 Cc Population dynamics and ecological pattern formation – 87 23 Kg Dynamics of evolution |
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