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Trudy Instituta Matematiki i Mekhaniki UrO RAN, 2021, Volume 27, Number 1, Pages 246–257
DOI: https://doi.org/10.21538/0134-4889-2021-27-1-246-257
(Mi timm1806)
 

On the convergence of minimizers and minimum values in variational problems with pointwise functional constraints in variable domains

A. A. Kovalevskyab

a Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
References:
Abstract: We consider a sequence of convex integral functionals $F_s:W^{1,p}(\Omega_s)\to\mathbb R$ and a sequence of weakly lower semicontinuous and, in general, non-integral functionals $G_s:W^{1,p}(\Omega_s)\to\mathbb R$, where $\{\Omega_s\}$ is a sequence of domains in $\mathbb R^n$ contained in a bounded domain $\Omega\subset\mathbb R^n$ ($n\geqslant 2$) and $p>1$. Along with this, we consider a sequence of closed convex sets $V_s=\{v\in W^{1,p}(\Omega_s): M_s(v)\leqslant 0\,\,\text{a.e. in}\,\,\Omega_s\}$, where $M_s$ is a mapping from $W^{1,p}(\Omega_s)$ to the set of all functions defined on $\Omega_s$. We describe conditions under which minimizers and minimum values of the functionals $F_s+G_s$ on the sets $V_s$ converge to a minimizer and the minimum value of a functional on the set $V=\{v\in W^{1,p}(\Omega): M(v)\leqslant 0\,\,\text{a.e. in}\,\,\Omega\}$, where $M$ is a mapping from $W^{1,p}(\Omega)$ to the set of all functions defined on $\Omega$. In particular, for our convergence results, we require that the sequence of spaces $W^{1,p}(\Omega_s)$ is strongly connected with the space $W^{1,p}(\Omega)$ and the sequence $\{F_s\}$ $\it{\Gamma}$-converges to a functional defined on $W^{1,p}(\Omega)$. In so doing, we focus on the conditions on the mappings $M_s$ and $M$ which, along with the corresponding requirements on the involved domains and functionals, ensure the convergence of solutions of the considered variational problems. Such conditions have been obtained in our recent work, and, in the present paper, we advance in studying them.
Keywords: variational problem; integral functional; pointwise functional constraint; minimizer; minimum value; $\it{\Gamma}$-convergence; strong connectedness; variable domains.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 02.A03.21.0006
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).
Received: 16.12.2020
Revised: 16.01.2021
Accepted: 01.02.2021
Bibliographic databases:
Document Type: Article
UDC: 517.972
MSC: 49J40, 49J45
Language: English
Citation: A. A. Kovalevsky, “On the convergence of minimizers and minimum values in variational problems with pointwise functional constraints in variable domains”, Trudy Inst. Mat. i Mekh. UrO RAN, 27, no. 1, 2021, 246–257
Citation in format AMSBIB
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\by A.~A.~Kovalevsky
\paper On the convergence of minimizers and minimum values in variational problems with pointwise functional constraints in variable domains
\serial Trudy Inst. Mat. i Mekh. UrO RAN
\yr 2021
\vol 27
\issue 1
\pages 246--257
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\crossref{https://doi.org/10.21538/0134-4889-2021-27-1-246-257}
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\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85114394957}
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