{"title":"Fine boundary regularity for the singular fractional p-Laplacian","authors":"","doi":"10.1016/j.jde.2024.08.026","DOIUrl":null,"url":null,"abstract":"<div><p>We study the boundary weighted regularity of weak solutions <em>u</em> to a <em>s</em>-fractional <em>p</em>-Laplacian equation in a bounded <span><math><msup><mrow><mi>C</mi></mrow><mrow><mn>1</mn><mo>,</mo><mn>1</mn></mrow></msup></math></span> domain Ω with bounded reaction and nonlocal Dirichlet type boundary condition, with <span><math><mi>s</mi><mo>∈</mo><mo>(</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>)</mo></math></span>. We prove optimal up-to-the-boundary regularity of <em>u</em>, which is <span><math><msup><mrow><mi>C</mi></mrow><mrow><mi>s</mi></mrow></msup><mo>(</mo><mover><mrow><mi>Ω</mi></mrow><mo>‾</mo></mover><mo>)</mo></math></span> for any <span><math><mi>p</mi><mo>></mo><mn>1</mn></math></span> and, in the singular case <span><math><mi>p</mi><mo>∈</mo><mo>(</mo><mn>1</mn><mo>,</mo><mn>2</mn><mo>)</mo></math></span>, that <span><math><mi>u</mi><mo>/</mo><msubsup><mrow><mi>d</mi></mrow><mrow><mi>Ω</mi></mrow><mrow><mi>s</mi></mrow></msubsup></math></span> has a Hölder continuous extension to the closure of Ω, <span><math><msub><mrow><mi>d</mi></mrow><mrow><mi>Ω</mi></mrow></msub><mo>(</mo><mi>x</mi><mo>)</mo></math></span> meaning the distance of <em>x</em> from the complement of Ω. This last result is the singular counterpart of the one in <span><span>[30]</span></span>, where the degenerate case <span><math><mi>p</mi><mo>⩾</mo><mn>2</mn></math></span> is considered.</p></div>","PeriodicalId":15623,"journal":{"name":"Journal of Differential Equations","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022039624005084/pdfft?md5=1c17576e29620614c9f4f6b0066610f0&pid=1-s2.0-S0022039624005084-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Differential Equations","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022039624005084","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
We study the boundary weighted regularity of weak solutions u to a s-fractional p-Laplacian equation in a bounded domain Ω with bounded reaction and nonlocal Dirichlet type boundary condition, with . We prove optimal up-to-the-boundary regularity of u, which is for any and, in the singular case , that has a Hölder continuous extension to the closure of Ω, meaning the distance of x from the complement of Ω. This last result is the singular counterpart of the one in [30], where the degenerate case is considered.
期刊介绍:
The Journal of Differential Equations is concerned with the theory and the application of differential equations. The articles published are addressed not only to mathematicians but also to those engineers, physicists, and other scientists for whom differential equations are valuable research tools.
Research Areas Include:
• Mathematical control theory
• Ordinary differential equations
• Partial differential equations
• Stochastic differential equations
• Topological dynamics
• Related topics