Existence of a solution of the wave equation with nonlinear damping and source terms

Abstract

We study the nonlinear wave equation involving the nonlinear damping term ut |ut|m-1 and a source term of type u |u|p-1. For 1 < p ≤ m we prove a global existence theorem with large initial data. For 1 < m < p a blow-up result is established for sufficiently large initial data. © 1994 by Academic Press, Inc.