Decay rate to contact discontinuities for the 1-D compressible Navier-Stokes system
Decay rate to contact discontinuities for the 1-D compressible Navier-Stokes system
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一维可压缩纳维-斯托克斯系统的接触不连续性衰减率
DOI:
10.1016/j.jde.2020.05.004
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发表时间:
2020-10
期刊:
影响因子:
--
通讯作者:
Yang Dongcheng
中科院分区:
文献类型:
--
作者:
Yang Dongcheng
We revisit the classical work of Huang-Matsumura-Xin [9] for contact wave of the one-dimensional compressible Navier-Stokes system under the zero mass condition. The large-time asymptotic stability of a contact wave pattern with a uniform convergence rate (1+ t)− 1 4 was proved by Huang-Matsumura-Xin. In this paper, Huang-Matsumura-Xin's convergence rate is improved to (1+ t)− 5 8 ln 1 2(2+ t) by using a new Poincaré type inequality and a detailed energy analysis. Our work is motivated by a problem arising in [9].
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