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Traveling wave solutions in a nonlocal dispersal SIR epidemic model with nonlocal time-delay and general nonlinear incidences. (English) Zbl 1541.35121

Summary: This paper investigates a nonlocal dispersal epidemic model under the multiple nonlocal distributed delays and nonlinear incidence effects. First, the minimal wave speed \(c^\ast\) and the basic reproduction number \(R_0\) are defined, which determine the existence of traveling wave solutions. Second, with the help of the upper and lower solutions, Schauder’s fixed point theorem, and limiting techniques, the traveling waves satisfying some asymptotic boundary conditions are discussed. Specifically, when \(\mathcal{R}_0>1\), for every speed \(c>c^\ast\) there exists a traveling wave solution satisfying the boundary conditions, and there is no such traveling wave solution for any \(0<c< c^*\) when \(\mathcal{R}_0>1\) or \(c>0\) when \(\mathcal{R}_0<1\). Finally, we analyze the effects of nonlocal time delay on the minimum wave speed.

MSC:

35C07 Traveling wave solutions
35B40 Asymptotic behavior of solutions to PDEs
35K57 Reaction-diffusion equations
92D30 Epidemiology
Full Text: DOI

References:

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