On the analysis and approximation of some models of fluids over weighted spaces on convex polyhedra

On the analysis and approximation of some models of fluids over weighted spaces on convex polyhedra
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凸多面体上加权空间流体的一些模型的分析与逼近

DOI:
10.1007/s00211-022-01272-5
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发表时间:
2022
影响因子:
2.1
通讯作者:
Salgado, Abner J.
Salgado, Abner J.
中科院分区:
数学2区
文献类型:
--
作者:
Otárola, Enrique;Salgado, Abner J.

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We study the Stokes problem over convex polyhedral domains on weighted Sobolev spaces. The weight is assumed to belong to the Muckenhoupt class \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varvec{A}_{\varvec{q}}$$\end{document} for \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varvec{q} \in (1,\varvec{\infty })$$\end{document}. We show that the Stokes problem is well-posed for all \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varvec{q}$$\end{document}. In addition, we show that the finite element Stokes projection is stable on weighted spaces. With the aid of these tools, we provide well-posedness and approximation results to some classes of non-Newtonian fluids.
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