On Strong Continuity of Weak Solutions to the Compressible Euler System

On Strong Continuity of Weak Solutions to the Compressible Euler System
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可压缩欧拉系统弱解的强连续性

DOI:
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发表时间:
2019
影响因子:
3
通讯作者:
E. Feireisl
E. Feireisl
中科院分区:
数学2区
文献类型:
--
作者:
A. Abbatiello;E. Feireisl

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令 S={τn}n=1∞⊂(0,T)documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{文档}$${mathcal {S}} = { au _n }_{n=1}^infty 子集 (0,T)$$end{document} 是任意可数(稠密)集。我们证明,对于任何给定的初始密度和动量,可压缩欧拉系统承认(无穷多个)可容许的弱解,这些弱解在每个 τndocumentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{文档}$$ au _n$$end{文档},n=1,2,⋯documentclass[12pt]{最小} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt}egin{文档}$$n=1,2,点$$end{文档}。该证明基于 De Lellis 和 Székelyhidi 振荡引理的改进版本,其系数在一组零勒贝格测度上可能不连续。
Let S={τn}n=1∞⊂(0,T)documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$${mathcal {S}} = { au _n }_{n=1}^infty subset (0,T)$$end{document} be an arbitrary countable (dense) set. We show that for any given initial density and momentum, the compressible Euler system admits (infinitely many) admissible weak solutions that are not strongly continuous at each τndocumentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$ au _n$$end{document}, n=1,2,⋯documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$n=1,2,dots $$end{document}. The proof is based on a refined version of the oscillatory lemma of De Lellis and Székelyhidi with coefficients that may be discontinuous on a set of zero Lebesgue measure.
DOI: 10.1007/s00205-008-0201-x
发表时间: 2010-01-01
影响因子: 2.5
作者:
De Lellis, Camillo;Szekelyhidi, Laszlo, Jr.
通讯作者: Szekelyhidi, Laszlo, Jr.