Optimal Hölder regularity for solutions to Signorini-type obstacle problems

Fuente: arXiv
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Main Authors: Lee, Ki-Ahm, Lee, Se-Chan, Schefer, Waldemar
Format: Preprint
Published: 2025
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_version_ 1866917903627976704
author Lee, Ki-Ahm
Lee, Se-Chan
Schefer, Waldemar
author_facet Lee, Ki-Ahm
Lee, Se-Chan
Schefer, Waldemar
contents We study the existence, uniqueness, and regularity of weak solutions to a class of obstacle problems, where the obstacle condition can be imposed on a subset of the domain. In particular, we establish the optimal Hölder regularity for Signorini-type problems, that is, the obstacle condition is imposed only on a subset of codimension one. For this purpose, we employ capacities, Alt--Caffarelli--Friedman-type and Almgren-type monotonicity formulae, and investigate an associated mixed boundary value problem. Further, we apply this problem to study classical obstacle problems for irregular obstacles.
format Preprint
id arxiv_https___arxiv_org_abs_2501_16179
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimal Hölder regularity for solutions to Signorini-type obstacle problems
Lee, Ki-Ahm
Lee, Se-Chan
Schefer, Waldemar
Analysis of PDEs
35B65, 35J86, 35R35
We study the existence, uniqueness, and regularity of weak solutions to a class of obstacle problems, where the obstacle condition can be imposed on a subset of the domain. In particular, we establish the optimal Hölder regularity for Signorini-type problems, that is, the obstacle condition is imposed only on a subset of codimension one. For this purpose, we employ capacities, Alt--Caffarelli--Friedman-type and Almgren-type monotonicity formulae, and investigate an associated mixed boundary value problem. Further, we apply this problem to study classical obstacle problems for irregular obstacles.
title Optimal Hölder regularity for solutions to Signorini-type obstacle problems
topic Analysis of PDEs
35B65, 35J86, 35R35
url https://arxiv.org/abs/2501.16179