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Global existence of solutions to 1-d Euler equations with time-dependent damping
被引:51
|作者:
Pan, Xinghong
[1
,2
]
机构:
[1] Nanjing Univ, Dept Math, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, IMS, Nanjing 210093, Jiangsu, Peoples R China
关键词:
Euler equation;
Global existence;
Time-dependent damping;
NONLINEAR DIFFUSION WAVES;
HYPERBOLIC CONSERVATION-LAWS;
CONVERGENCE;
SYSTEM;
DISSIPATION;
D O I:
10.1016/j.na.2015.11.022
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In this paper, we study the 1-d isentropic Euler equations with time-dependent damping. Our damping decays at a speed of order -1 with respect to time which is a little weaker than the linear one. Under our assumption, we will prove the global existence of solutions to the Euler system and obtain L-2 and L-infinity estimates for the solutions. Our approach is based on some detailed energy estimates. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:327 / 336
页数:10
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