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Finite difference schemes for the parabolic p-Laplace equation
Departamento de Matematicas, Universidad Autónoma de Madrid (UAM), Campus de Cantoblanco, 28049, Madrid, Spain.ORCID iD: 0000-0001-9621-7826
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).ORCID iD: 0000-0003-4309-9242
2023 (English)In: SeMA Journal, ISSN 2254-3902, Vol. 80, no 4, p. 527-547Article in journal (Refereed) Published
Abstract [en]

We propose a new finite difference scheme for the degenerate parabolic equation ∂tu-div(|∇u|p-2∇u)=f,p≥2.Under the assumption that the data is Hölder continuous, we establish the convergence of the explicit-in-time scheme for the Cauchy problem provided a suitable stability type CFL-condition. An important advantage of our approach, is that the CFL-condition makes use of the regularity provided by the scheme to reduce the computational cost. In particular, for Lipschitz data, the CFL-condition is of the same order as for the heat equation and independent of p.

Place, publisher, year, edition, pages
Springer Nature , 2023. Vol. 80, no 4, p. 527-547
Keywords [en]
Explicit scheme, Finite differences, Mean value property, p-Laplacian, Viscosity solutions
National Category
Computational Mathematics
Identifiers
URN: urn:nbn:se:kth:diva-335771DOI: 10.1007/s40324-022-00316-yISI: 001572866300007Scopus ID: 2-s2.0-85140333018OAI: oai:DiVA.org:kth-335771DiVA, id: diva2:1795556
Note

QC 20251218

Available from: 2023-09-08 Created: 2023-09-08 Last updated: 2025-12-18Bibliographically approved

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Lindgren, Erik

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