Weighted Sobolev regularity and rate of approximation of the obstacle problem for the integral fractional Laplacian.

Borthagaray, Juan Pablo - Nochetto, Ricardo H. - Salgado, Abner J.

Resumen:

We obtain regularity results in weighted Sobolev spaces for the solution of the obstacle problem for the integral fractional Laplacian (−Δ)s in a Lipschitz bounded domain Ω⊂Rn satisfying the exterior ball condition. The weight is a power of the distance to the boundary ∂Ω of Ω that accounts for the singular boundary behavior of the solution for any 0
Detalles Bibliográficos
2019
Juan Pablo Borthagaray ha sido financiado en parte por la subvención DMS-1411808 de la NSF.
Obstacle problem
Free boundaries
Finite elements
Fractional diffusion
Weighted Sobolev spaces
Graded meshes
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/47766
Acceso abierto
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)