Resolvent estimates for high-contrast elliptic problems with periodic coefficients

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Abstract

We study the asymptotic behaviour of the resolvents \({(\mathcal{A}^\varepsilon+I)^{-1}}\) of elliptic second-order differential operators \({{\mathcal{A}}^\varepsilon}\) in \({\mathbb{R}^d}\) with periodic rapidly oscillating coefficients, as the period \({\varepsilon}\) goes to zero. The class of operators covered by our analysis includes both the “classical” case of uniformly elliptic families (where the ellipticity constant does not depend on \({\varepsilon}\)) and the “double-porosity” case of coefficients that take contrasting values of order one and of order \({\varepsilon^2}\) in different parts of the period cell. We provide a construction for the leading order term of the “operator asymptotics” of \({(\mathcal{A}^\varepsilon+I)^{-1}}\) in the sense of operator-norm convergence and prove order \({O(\varepsilon)}\) remainder estimates.
LanguageEnglish
Pages1061-1086
JournalArchive for Rational Mechanics and Analysis
Volume219
Issue number3
Early online date7 Sep 2015
DOIs
StatusPublished - Mar 2016

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Resolvent Estimates
Periodic Coefficients
Elliptic Problems
Porosity
Oscillating Coefficients
Operator Norm
Ellipticity
Operator
Remainder
Resolvent
Differential operator
Asymptotic Behavior
Cell
Zero
Coefficient
Term
Estimate

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Resolvent estimates for high-contrast elliptic problems with periodic coefficients. / Cherednichenko, K. D.; Cooper, S.

In: Archive for Rational Mechanics and Analysis, Vol. 219, No. 3, 03.2016, p. 1061-1086.

Research output: Contribution to journalArticle

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