A blow-up result for a nonlinear wave equation with variable-exponent nonlinearities
APPLICABLE ANALYSIS(2017)
摘要
In this paper, we consider the following wave equation: u(tt) - div(|u| m(x)-2u) + ut = | u| p( x)- 2u in which is a nonnegative constant and the exponents of nonlinearity m(x), p(x) are given functions. For arbitrary positive initial energy, we prove a finite-time blow-up result.
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关键词
Blow up,nonlinear wave equation,Sobolev spaces with variable exponents,variable nonlinearity,35B44,35D30,35L70
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