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By using Lebesgue's dominated convergence theorem and constructing a suitable Lyapunov functional, we study the following almost-periodic Lotka-Volterra, model with M predators and N prey of the integro-differential equations ẋi(t) = xi(t) [bi(t) - a ii(t)xi(t) - Σk=1,k≠i/N aik(t) ∫-∞t Hik(t - σ)xk(σ)dσ - Σl=1/ Mcil(t) ∫-∞t K il(t - σ)yt(σ)dσ], i = 1,2. . ., N, ẏ(t) = yi(t) [-rj(t) - ejj(t)y j(t) + Σk=1/N djk(t) ∫-∞t Pjk(t - σ)x k(σ) dσ - Σ l=1≠j/M ejl(t) ∫-∞t Qjl(t - σ)y l(σ) dσ], j = 1,2, . . ., M. Some sufficient conditions are obtained for the existence of a unique almost-periodic solution of this model. Several examples show that the obtained criteria are new, general and easily verifiable.
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Proceedings of the Edinburgh Mathematical Society
ISSN: 0013-0915
Year: 2007
Issue: 1
Volume: 50
Page: 229-249
0 . 5 2 9
JCR@2007
0 . 7 0 0
JCR@2023
JCR Journal Grade:2
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