Extinction of Weak Solutions for Nonlinear Parabolic Equations with Nonstandard Growth Conditions

Abstract

This paper deals with the extinction of weak solutions of the initial and boundary value problem for $u_t$ = div$((|u|^σ + d_0)|∇u|^{p(x)−2}∇u)$. When the exponent belongs to different intervals, the solution has different singularity (vanishing in finite time).