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Title: Weak-strong uniqueness for Navier-Stokes/Allen-Cahn system (English)
Author: Hošek, Radim
Author: Mácha, Václav
Language: English
Journal: Czechoslovak Mathematical Journal
ISSN: 0011-4642 (print)
ISSN: 1572-9141 (online)
Volume: 69
Issue: 3
Year: 2019
Pages: 837-851
Summary lang: English
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Category: math
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Summary: The coupled Navier-Stokes/Allen-Cahn system is a simple model to describe phase separation in two-component systems interacting with an incompressible fluid flow. We demonstrate the weak-strong uniqueness result for this system in a bounded domain in three spatial dimensions which implies that when a strong solution exists, then a weak solution emanating from the same data coincides with the strong solution on its whole life span. The proof of given assertion relies on a form of a relative entropy method. (English)
Keyword: Allen-Cahn system
Keyword: weak-strong uniqueness
MSC: 35A02
MSC: 35B65
idZBL: Zbl 07088819
idMR: MR3989281
DOI: 10.21136/CMJ.2019.0520-17
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Date available: 2019-07-24T11:20:12Z
Last updated: 2021-10-04
Stable URL: http://hdl.handle.net/10338.dmlcz/147792
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