Regularity results for a penalized boundary obstacle problem

In this paper we are concerned with a two-penalty boundary obstacle problem of interest in thermics, fluid dynamics and electricity. Specifically, we prove existence, uniqueness and optimal regularity of the solutions, and we establish structural properties of the free boundary. A central role is pl...

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Main Authors: Donatella Danielli, Rohit Jain
Format: Article
Language:English
Published: AIMS Press 2021-10-01
Series:Mathematics in Engineering
Subjects:
Online Access:https://www.aimspress.com/article/10.3934/mine.2021007/fulltext.html
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author Donatella Danielli
Rohit Jain
author_facet Donatella Danielli
Rohit Jain
author_sort Donatella Danielli
collection DOAJ
description In this paper we are concerned with a two-penalty boundary obstacle problem of interest in thermics, fluid dynamics and electricity. Specifically, we prove existence, uniqueness and optimal regularity of the solutions, and we establish structural properties of the free boundary. A central role is played by the monotonicity of ad hoc Almgren- and Monneau-type functionals.
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spelling doaj.art-7798b4ed898e4e148cf7eb8ec33edadf2022-12-21T18:55:51ZengAIMS PressMathematics in Engineering2640-35012021-10-013112310.3934/mine.2021007Regularity results for a penalized boundary obstacle problemDonatella Danielli0Rohit Jain11 Department of Mathematics, Purdue University, 150 N. University St., West Lafayette, IN 47907, USA2 Materiall, 500 E Calaveras, Suite 240, Milpitas, CA 95035, USAIn this paper we are concerned with a two-penalty boundary obstacle problem of interest in thermics, fluid dynamics and electricity. Specifically, we prove existence, uniqueness and optimal regularity of the solutions, and we establish structural properties of the free boundary. A central role is played by the monotonicity of ad hoc Almgren- and Monneau-type functionals.https://www.aimspress.com/article/10.3934/mine.2021007/fulltext.htmlfree boundary problemsobstacle problemspenalized boundary conditionsmonotonicity formulassemi-permeable membranes
spellingShingle Donatella Danielli
Rohit Jain
Regularity results for a penalized boundary obstacle problem
Mathematics in Engineering
free boundary problems
obstacle problems
penalized boundary conditions
monotonicity formulas
semi-permeable membranes
title Regularity results for a penalized boundary obstacle problem
title_full Regularity results for a penalized boundary obstacle problem
title_fullStr Regularity results for a penalized boundary obstacle problem
title_full_unstemmed Regularity results for a penalized boundary obstacle problem
title_short Regularity results for a penalized boundary obstacle problem
title_sort regularity results for a penalized boundary obstacle problem
topic free boundary problems
obstacle problems
penalized boundary conditions
monotonicity formulas
semi-permeable membranes
url https://www.aimspress.com/article/10.3934/mine.2021007/fulltext.html
work_keys_str_mv AT donatelladanielli regularityresultsforapenalizedboundaryobstacleproblem
AT rohitjain regularityresultsforapenalizedboundaryobstacleproblem