Global nonexistence of positive initial energy solutions for a viscoelastic wave equation

In this paper, we consider the nonlinear viscoelastic equation: |ut|ρutt−△u+∫0tg(t−τ)△u(τ)dτ+|ut|m−2ut=|u|p−2u,in  Ω×[0,T], with initial conditions and Dirichlet boundary conditions. For nonincreasing positive functions gg, we prove the nonexistence of global solutions with positive initial energy.