Pattern formation and spatial correlation induced by the noise in two competing species

Details Pattern formation and spatial correlation induced by the noise in two competing species Pattern formation and spatial correlation induced by the noise in two competing species

2004-01-22

arxiv.org/abs/cond-mat/0401424v1

Physics

Condensed Matter

Statistical Mechanics

10 pages, 7 figures. accepted for publication in Acta Phys. Pol. B

Scientific paper

We analyze the spatio-temporal patterns of two competing species in the presence of two white noise sources: an additive noise acting on the interaction parameter and a multiplicative noise which affects directly the dynamics of the species densities. We use a coupled map lattice (CML) with uniform initial conditions. We find a nonmonotonic behavior both of the pattern formation and the density correlation as a function of the multiplicative noise intensity.

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