How to approximate the heat equation with Neumann boundary conditions by nonlocal diffusion problems

We present a model for nonlocal diffusion with Neumann boundary conditions in a bounded smooth domain prescribing the flux through the boundary. We study the limit of this family of nonlocal diffusion operators when a rescaling parameter related to the kernel of the nonlocal operator goes to zero. W...

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Autores principales: Cortazar, C., Elgueta, M., Rossi, J.D., Wolanski, N.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00039527_v187_n1_p137_Cortazar
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Sumario:We present a model for nonlocal diffusion with Neumann boundary conditions in a bounded smooth domain prescribing the flux through the boundary. We study the limit of this family of nonlocal diffusion operators when a rescaling parameter related to the kernel of the nonlocal operator goes to zero. We prove that the solutions of this family of problems converge to a solution of the heat equation with Neumann boundary conditions. © 2007 Springer-Verlag.