Abstract
In this paper, we study the nonlocal ∞-Laplacian type diffusion equation obtained as the limit as p → ∞ to the nonlocal analogous to the p-Laplacian evolution,
We prove exist ence and uniqueness of a limit solution that verifies an equation governed by the subdifferential of a convex energy functional associated to the indicator function of the set \({K = \{ u \in L^2(\mathbb{R}^N) \, : \, | u(x) - u(y)| \le 1, \mbox{ when } x-y \in {\rm supp} (J)\}}\) . We also find some explicit examples of solutions to the limit equation. If the kernel J is rescaled in an appropriate way, we show that the solutions to the corresponding nonlocal problems converge strongly in L ∞(0, T; L 2 (Ω)) to the limit solution of the local evolutions of the p-Laplacian, v t = Δ p v. This last limit problem has been proposed as a model to describe the formation of a sandpile. Moreover, we also analyze the collapse of the initial condition when it does not belong to K by means of a suitable rescale of the solution that describes the initial layer that appears for p large. Finally, we give an interpretation of the limit problem in terms of Monge–Kantorovich mass transport theory.
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F. Andreu, J. M. Mazón and J. Toledo were supported by the Spanish MEC and FEDER, project MTM2005-00620, and by the project ACOMP2007/112 from Generalitat Valenciana. J. D. Rossi was partially supported by Generalitat Valenciana under AINV2007/03 and ANPCyT PICT 5009, UBA X066 and CONICET (Argentina).
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Andreu, F., Mazón, J.M., Rossi, J.D. et al. The limit as p → ∞ in a nonlocal p-Laplacian evolution equation: a nonlocal approximation of a model for sandpiles. Calc. Var. 35, 279–316 (2009). https://doi.org/10.1007/s00526-008-0205-2
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DOI: https://doi.org/10.1007/s00526-008-0205-2