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Stochastic homogenisation of high-contrast media

Cherdantsev, Mikhail, Cherednichenko, Kirill and Velcic, Igor 2019. Stochastic homogenisation of high-contrast media. Applicable Analysis 98 (1-2) , pp. 91-117. 10.1080/00036811.2018.1495327

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Using a suitable stochastic version of the compactness argument of [Zhikov VV. On an extension of the method of two-scale convergence and its applications. Sb Math. 2000;191(7–8):973–1014], we develop a probabilistic framework for the analysis of heterogeneous media with high contrast. We show that an appropriately defined multiscale limit of the field in the original medium satisfies a system of equations corresponding to the coupled ‘macroscopic’ and ‘microscopic’ components of the field, giving rise to an analogue of the ‘Zhikov function’, which represents the effective dispersion of the medium. We demonstrate that, under some lenient conditions within the new framework, the spectra of the original problems converge to the spectrum of their homogenisation limit.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Mathematics
Publisher: Taylor & Francis
ISSN: 0003-6811
Date of First Compliant Deposit: 19 September 2018
Date of Acceptance: 27 June 2018
Last Modified: 07 Oct 2021 13:59

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