Global well-posedness of nonlinear wave equation with weak and strong damping terms and logarithmic source term

被引:146
作者
Lian, Wei [1 ]
Xu, Runzhang [1 ]
机构
[1] Harbin Engn Univ, Coll Automat, Harbin, Heilongjiang, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
Wave equation; global solution; weak and strong damping terms; energy decay; infinite time blow up; logarithmic nonlinearity; EVOLUTION-EQUATIONS; NONEXISTENCE THEOREMS; EXISTENCE;
D O I
10.1515/anona-2020-0016
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The main goal of this work is to investigate the initial boundary value problem of nonlinear wave equation with weak and strong damping terms and logarithmic term at three different initial energy levels, i.e., subcritical energy E(0) < d, critical initial energy E(0) = d and the arbitrary high initial energy E(0) > 0 (omega = 0). Firstly, we prove the local existence of weak solution by using contraction mapping principle. And in the framework of potential well, we show the global existence, energy decay and, unlike the power type nonlinearity, infinite time blow up of the solution with sub-critical initial energy. Then we parallelly extend all the conclusions for the subcritical case to the critical case by scaling technique. Besides, a high energy infinite time blow up result is established.
引用
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页码:613 / 632
页数:20
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