blowup and asymptotic stability of weak solutions to wave equations with nonlinear degenerate damping and source terms
;Hongwei Zhang;Qingying Hu
icsoft 2006 - 1st international conference on software and data technologies, proceedings2007Vol. 2007pp. 1-10
150
zhang2007electronicblowup
Abstract
This article concerns the blow-up and asymptotic stability of weak solutions to the wave equation $$ u_{tt}-Delta u +|u|^kj'(u_t)=|u|^{p-1}u quad hbox{in }Omega imes (0,T), $$ where $p>1$ and $j'$ denotes the derivative of a $C^1$ convex and real value function $j$. We prove that every weak solution is asymptotically stability, for every $m$ such that $0k+m$ and the initial data is positive, but appropriately bounded.