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Global existence and asymptotic behaviour of solution for a damped nonlinear hyperbolic equation
Nonlinear Analysis ( IF 1.3 ) Pub Date : 2020-04-04 , DOI: 10.1016/j.na.2020.111885
Tiantian Pang , Jihong Shen

In this paper we study the initial–boundary value problem for a damped nonlinear hyperbolic equation utt+Δ2u+αΔ2ut+Δf(Δu)=0,xΩ,t>0,u(x,0)=u0(x),ut(x,0)=u1(x),xΩ,u=0Δu=0,xΩ,t0, where ΩRn, n1 and α is a positive constant. Under some assumptions on f(s) and initial data, we prove the global existence of solution. Furthermore, we prove that the solution decays to zero exponentially.



中文翻译:

阻尼非线性双曲型方程解的整体存在性和渐近性质

在本文中,我们研究了阻尼非线性双曲型方程的初边值问题 üŤŤ+Δ2ü+αΔ2üŤ+ΔFΔü=0XΩŤ>0üX0=ü0XüŤX0=ü1个XXΩü=0Δü=0XΩŤ0 哪里 Ω[Rññ1个α是一个正常数。根据一些假设Fs和初始数据,我们证明了解决方案的全球存在。此外,我们证明了该解呈指数衰减至零。

更新日期:2020-04-04
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