Weak Solutions for Compressible Isentropic Navier-Stokes Equations in Dimensions Three

被引:1
|
作者
Hu, Xianpeng [1 ]
机构
[1] City Univ Hong Kong, Dept Math, Hong Kong, Peoples R China
关键词
EXISTENCE;
D O I
10.1007/s00205-021-01716-6
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Except a closed set S-c with zero parabolic Hausdorff measure, the weak limit (rho, u) of approximate solutions is a renormalized weak solution with finite energy of three dimensional compressible Navier-Stokes equations for gamma is an element of (6/5, 3/2] as constructed by Lions and Feireisl et al. in the Leray sense. The key novelty of the paper is the improved integrability of pressure by localization, which is based on the faster decay of the gradient of velocity and the higher integrability of the Riesz potentials of both density and momentum.
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页码:1907 / 1945
页数:39
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