Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands

We prove lower semicontinuity in ¹(Ω) for a class of functionals :(Ω) →ℝ of the form ()=∫Ω(, ) + ∫Ω()|Dˢ| where :Ω⨉ℝᴺ→ℝ, Ω⊂ℝᴺ is open and bounded, (.,) ∊ ¹(Ω) for each satisfies the linear growth condition lim|→∞ (,)/|| = () ∊ (Ω) ∩ ∞ (Ω) and is convex in depending only on || for a.e. . Here, we rec...

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المؤلف الرئيسي: Wunderli, Thomas (author)
التنسيق: article
منشور في: 2021
الوصول للمادة أونلاين:http://hdl.handle.net/11073/24057
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author Wunderli, Thomas
author_facet Wunderli, Thomas
author_role author
dc.creator.none.fl_str_mv Wunderli, Thomas
dc.date.none.fl_str_mv 2021
2022-06-23T07:50:38Z
2022-06-23T07:50:38Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv T. Wunderli, "Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands", Abstract and Applied Analysis, vol. 2021, Article ID 6709303, 6 pages, 2021. https://doi.org/10.1155/2021/6709303
1085-3375
http://hdl.handle.net/11073/24057
10.1155/2021/6709303
dc.language.none.fl_str_mv en_US
dc.publisher.none.fl_str_mv Hindawi Limited
dc.relation.none.fl_str_mv https://doi.org/10.1155/2021/6709303
dc.title.none.fl_str_mv Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
dc.type.none.fl_str_mv Peer-Reviewed
Published version
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
description We prove lower semicontinuity in ¹(Ω) for a class of functionals :(Ω) →ℝ of the form ()=∫Ω(, ) + ∫Ω()|Dˢ| where :Ω⨉ℝᴺ→ℝ, Ω⊂ℝᴺ is open and bounded, (.,) ∊ ¹(Ω) for each satisfies the linear growth condition lim|→∞ (,)/|| = () ∊ (Ω) ∩ ∞ (Ω) and is convex in depending only on || for a.e. . Here, we recall for ∊ (Ω); the gradient measure = + (Dˢ)() is decomposed into mutually singular measures and (Dˢ)(). As an example, we use this to prove that ∫Ω() √[²() + | |² + ∫Ω()|Dˢ|] is lower semicontinuous in ¹(Ω) for any bounded continuous and any ∊ ¹(Ω). Under minor addtional assumptions on , we then have the existence of minimizers of functionals to variational problems of the form () + || - ₀||¹ for the given ₀ ∊ ¹(Ω) due to the compactness of (Ω) in ¹(Ω).
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identifier_str_mv T. Wunderli, "Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands", Abstract and Applied Analysis, vol. 2021, Article ID 6709303, 6 pages, 2021. https://doi.org/10.1155/2021/6709303
1085-3375
10.1155/2021/6709303
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oai_identifier_str oai:repository.aus.edu:11073/24057
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spelling Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory IntegrandsWunderli, ThomasWe prove lower semicontinuity in ¹(Ω) for a class of functionals :(Ω) →ℝ of the form ()=∫Ω(, ) + ∫Ω()|Dˢ| where :Ω⨉ℝᴺ→ℝ, Ω⊂ℝᴺ is open and bounded, (.,) ∊ ¹(Ω) for each satisfies the linear growth condition lim|→∞ (,)/|| = () ∊ (Ω) ∩ ∞ (Ω) and is convex in depending only on || for a.e. . Here, we recall for ∊ (Ω); the gradient measure = + (Dˢ)() is decomposed into mutually singular measures and (Dˢ)(). As an example, we use this to prove that ∫Ω() √[²() + | |² + ∫Ω()|Dˢ|] is lower semicontinuous in ¹(Ω) for any bounded continuous and any ∊ ¹(Ω). Under minor addtional assumptions on , we then have the existence of minimizers of functionals to variational problems of the form () + || - ₀||¹ for the given ₀ ∊ ¹(Ω) due to the compactness of (Ω) in ¹(Ω).Hindawi Limited2022-06-23T07:50:38Z2022-06-23T07:50:38Z2021Peer-ReviewedPublished versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfT. Wunderli, "Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands", Abstract and Applied Analysis, vol. 2021, Article ID 6709303, 6 pages, 2021. https://doi.org/10.1155/2021/67093031085-3375http://hdl.handle.net/11073/2405710.1155/2021/6709303en_UShttps://doi.org/10.1155/2021/6709303oai:repository.aus.edu:11073/240572024-08-22T12:01:56Z
spellingShingle Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
Wunderli, Thomas
status_str publishedVersion
title Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
title_full Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
title_fullStr Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
title_full_unstemmed Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
title_short Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
title_sort Lower Semicontinuity in L¹ of a Class of Functionals Defined on BV with Caratheodory Integrands
url http://hdl.handle.net/11073/24057