2007
DOI: 10.1007/s00205-007-0062-8
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How to Approximate the Heat Equation with Neumann Boundary Conditions by Nonlocal Diffusion Problems

Abstract: Abstract. 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.

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Cited by 192 publications
(151 citation statements)
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“…(See, for instance, [7,8]. ) Another close relation to the heat operator with diffusivity a was found in [5,13], where it was proven that for bounded and integrable initial data, the asymptotic behavior as t tends to infinity of the solution u L to the equation without absorption,…”
Section: Introductionmentioning
confidence: 75%
“…(See, for instance, [7,8]. ) Another close relation to the heat operator with diffusivity a was found in [5,13], where it was proven that for bounded and integrable initial data, the asymptotic behavior as t tends to infinity of the solution u L to the equation without absorption,…”
Section: Introductionmentioning
confidence: 75%
“…Primero derivamos una teoría completa de existencia y unicidad para el problema (22), en X = L p (Ω), con 1 ≤ p ≤ ∞ o X = C b (Ω), con g globalmente Lipschitz.…”
Section: Resultsunclassified
“…Por tanto, damos resultados de comparación para el problema (22), con g globally Lipschitz, con constante Lipschitz suficientemente pequeña en comparación con J, usando argumentos de punto fijo.…”
Section: Resultsunclassified
See 1 more Smart Citation
“…Concerning scalings of the kernel that approximate different problems we refer to [2], [21] and [31], where usual diffusion equations where obtained taking limits similar to the ones considered here.…”
Section: U(0 X) = U 0 (X)mentioning
confidence: 99%