Abstract
We give conditions for the convergence of minimizers and minimum values of integral and more general functionals \(J_s:W^{1,p}(\Omega_s)\rightarrow {\mathbb{R}}\) on sets of functions defined by a measurable lower constraint \(\varphi :\Omega \rightarrow \overline{\mathbb{R}}\) and a measurable upper constraint \(\psi :\Omega \rightarrow \overline{{\mathbb{R}}}\), where \(\Omega \) is a bounded domain in \({\mathbb{R}}^n\) (\(n\geqslant 2\)), \(\{\Omega_s\}\) is a sequence of domains in \({\mathbb{R}}^n\) contained in \(\Omega \), and \(p>1\). These conditions include the \(\Gamma \)-convergence of the functionals under consideration and some requirements on the domains \(\Omega _s\). As for the constraints \(\varphi \) and \(\psi \), we consider two cases. In the first case, we assume that there exist functions \(\bar{\varphi },\bar{\psi }\in W^{1,p}(\Omega )\) such that \(\varphi \leqslant \bar{\varphi }<\bar{\psi }\leqslant \psi \) a.e. in \(\Omega \). In the second case, we assume that there exists a function \(\beta \in W^{1,p}(\Omega )\) satisfying the inequality \(\varphi \leqslant \beta \leqslant \psi \) a.e. in \(\Omega \) and interacting with the integrands of the main components of the functionals \(J_s\) in a special way.
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Acknowledgements
This work was partially supported by the Russian Academic Excellence Project (agreement no. 02.A03.21.0006 of August 27, 2013, between the Ministry of Education and Science of the Russian Federation and Ural Federal University).
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Kovalevsky, A.A. Convergence of solutions of variational problems with measurable bilateral constraints in variable domains. Annali di Matematica 201, 835–859 (2022). https://doi.org/10.1007/s10231-021-01140-3
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DOI: https://doi.org/10.1007/s10231-021-01140-3
Keywords
- Integral functional
- Variational problem
- Bilateral constraints
- Minimizer
- Minimum value
- \({\Gamma }\)-convergence
- Variable domains