A reaction–diffusion system modeling predator–prey with prey-taxis |
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Institution: | 1. Univesité Victor Segalen Bordeaux 2 IMB, UMR CNRS 5251 and INRIA Futurs Bordeaux, France;2. Departamento de Ingenieria Matematica Universidad de Concepcion, Casilla 160-C, Concepcion, Chile;3. Universite Bordeaux 1, IMB, 351 cours de la Libération, 33400 Talence, France |
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Abstract: | We are concerned with a system of nonlinear partial differential equations modeling the Lotka–Volterra interactions of predators and preys in the presence of prey-taxis and spatial diffusion. The spatial and temporal variations of the predator's velocity are determined by the prey gradient. We prove the existence of weak solutions by using Schauder fixed-point theorem and uniqueness via duality technique. The linearized stability around equilibrium is also studied. A finite volume scheme is build and numerical simulation show interesting phenomena of pattern formation. |
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