The Neumann function and the L p Neumann problem in chord-arc domains

We construct the Neumann function in a 1-sided chord-arc domain (i.e., a uniform domain with an Ahlfors regular boundary), and establish size and Hölder continuity estimates up to the boundary. We then obtain a Kenig-Pipher type theorem, in which L p solvability of the Neumann problem is shown to yi...

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Main Authors: Hofmann Steve, Sparrius Derek
Format: Article
Language:English
Published: De Gruyter 2025-02-01
Series:Advanced Nonlinear Studies
Subjects:
Online Access:https://doi.org/10.1515/ans-2023-0171
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author Hofmann Steve
Sparrius Derek
author_facet Hofmann Steve
Sparrius Derek
author_sort Hofmann Steve
collection DOAJ
description We construct the Neumann function in a 1-sided chord-arc domain (i.e., a uniform domain with an Ahlfors regular boundary), and establish size and Hölder continuity estimates up to the boundary. We then obtain a Kenig-Pipher type theorem, in which L p solvability of the Neumann problem is shown to yield solvability in L q for 1 < q < p, and in the Hardy space H 1, in 2-sided chord-arc domains, under suitable background hypotheses.
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publishDate 2025-02-01
publisher De Gruyter
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series Advanced Nonlinear Studies
spelling doaj-art-5d754b2c8fc74ed3b1c2271e86f7204d2025-08-20T03:12:34ZengDe GruyterAdvanced Nonlinear Studies2169-03752025-02-0125231334910.1515/ans-2023-0171The Neumann function and the L p Neumann problem in chord-arc domainsHofmann Steve0Sparrius Derek1Department of Mathematics, University of Missouri, Columbia, MO65211, USADepartment of Mathematics, Truman State University, Kirksville, MO63501, USAWe construct the Neumann function in a 1-sided chord-arc domain (i.e., a uniform domain with an Ahlfors regular boundary), and establish size and Hölder continuity estimates up to the boundary. We then obtain a Kenig-Pipher type theorem, in which L p solvability of the Neumann problem is shown to yield solvability in L q for 1 < q < p, and in the Hardy space H 1, in 2-sided chord-arc domains, under suitable background hypotheses.https://doi.org/10.1515/ans-2023-0171neumann functionneumann problemsecond order elliptic equationschord-arc domains35j2542b3742b30
spellingShingle Hofmann Steve
Sparrius Derek
The Neumann function and the L p Neumann problem in chord-arc domains
Advanced Nonlinear Studies
neumann function
neumann problem
second order elliptic equations
chord-arc domains
35j25
42b37
42b30
title The Neumann function and the L p Neumann problem in chord-arc domains
title_full The Neumann function and the L p Neumann problem in chord-arc domains
title_fullStr The Neumann function and the L p Neumann problem in chord-arc domains
title_full_unstemmed The Neumann function and the L p Neumann problem in chord-arc domains
title_short The Neumann function and the L p Neumann problem in chord-arc domains
title_sort neumann function and the l p neumann problem in chord arc domains
topic neumann function
neumann problem
second order elliptic equations
chord-arc domains
35j25
42b37
42b30
url https://doi.org/10.1515/ans-2023-0171
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AT sparriusderek theneumannfunctionandthelpneumannprobleminchordarcdomains
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