\(\Gamma\)-convergence of an Enhanced Finite Element Method for Manià's Problem Exhibiting the Lavrentiev Gap Phenomenon

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发表在:arXiv.org (Dec 9, 2024), p. n/a
主要作者: Feng, Xiaobing H
其他作者: Siktar, Joshua M
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Cornell University Library, arXiv.org
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045 0 |b d20241209 
100 1 |a Feng, Xiaobing H 
245 1 |a \(\Gamma\)-convergence of an Enhanced Finite Element Method for Manià's Problem Exhibiting the Lavrentiev Gap Phenomenon 
260 |b Cornell University Library, arXiv.org  |c Dec 9, 2024 
513 |a Working Paper 
520 3 |a It is well-known that numerically approximating calculus of variations problems possessing a Lavrentiev Gap Phenomenon (LGP) is challenging, and the standard numerical methodologies such as finite element, finite difference, and discontinuous Galerkin methods fail to give convergent methods because they cannot overcome the gap. This paper is a continuation of a 2018 paper by Feng-Schnake, where a promising enhanced finite element method was proposed to overcome the LGP in the classical Manià's problem. The goal of this paper is to provide a complete \(\Gamma\)-convergence proof for this enhanced finite element method, hence establishing a theoretical foundation for the method. The crux of the convergence analysis is the construction of a new finite element interpolant that helps to build a recovery sequence for proving a \(\Gamma\)-convergence result due to its strong approximation properties in Sobolev spaces. Numerical tests are also provided to verify the theoretical results. 
653 |a Finite element method 
653 |a Mathematical analysis 
653 |a Convergence 
653 |a Galerkin method 
653 |a Sobolev space 
653 |a Calculus of variations 
653 |a Approximation 
700 1 |a Siktar, Joshua M 
773 0 |t arXiv.org  |g (Dec 9, 2024), p. n/a 
786 0 |d ProQuest  |t Engineering Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3115223491/abstract/embedded/ZKJTFFSVAI7CB62C?source=fedsrch 
856 4 0 |3 Full text outside of ProQuest  |u http://arxiv.org/abs/2410.06434