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非线性粘弹性波动方程解的一致衰减性

Uniform Decay Rates of the Solutions for Nonlinear Viscoelastic Wave Equations

【作者】 赵翠玲

【导师】 李傅山;

【作者基本信息】 曲阜师范大学 , 基础数学, 2011, 硕士

【摘要】 本文考虑非线性粘弹性波动方程的初边值问题:与非线性粘弹性波动方程的非局部边界耗散问题:解的一致衰减性.在函数g,h和f满足较弱的假设下,通过引入简单的Lyapunov泛函和精确的先验估计证明了,当时间趋于无穷大时上述两个问题的能量泛函以指数形式或多项式形式衰减到零.

【Abstract】 In this paper we consider the initial-boundary problem (2.1.1) of a class of nonlinear viscoelastic wave equation and the nonlinear viscoelastic wave equation with nonlocal boundary damping problem Under weaker assumptions on the functions g, h and f, we prove the energy functionals of (2.1.1) and (3.1.1) decay to zero exponentially or polynomially as the time goes to infinity by introducing brief Lyapunov functions and precise priori estimates.

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