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RESEARCH PRODUCT
Dynamics of a Lotka-Volterra system in the presence of non-Gaussian noise sources
La Cognata, AngeloValenti, DavideSpagnolo, BernardoDubkov, Aasubject
Fluctuation phenomenaRandom processeNoiseRandom walks and Lévy flightSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)description
We consider a Lotka-Volterra system of two competing species subject to multiplicative α-stable Lévy noise. The interaction parameter between the species is a random process which obeys a stochastic differential equation with a generalized bistable potential in the presence both of a periodic driving term and an additive alpha-stable Lévy noise. We study the species dynamics, which is characterized by two different dynamical regimes, exclusion of one species and coexistence of both ones, analyzing the role of the Lévy noise sources.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-01-01 |