Global existence and finite time blowup for a mixed pseudo-parabolic [formula omitted]-Laplacian type equation

Abstract

This paper concerns the initial–boundary value problem for a mixed pseudo-parabolic p-Laplacian type equation. By constructing a family of potential wells, we first present the explicit expression for the depth of potential well, and then prove the existence, uniqueness and decay estimate of global solutions and the blowup phenomena of solutions with subcritical initial energy. Next, we extend parallelly these results to the critical initial energy. Lastly, the existence, uniqueness and asymptotic behavior of global solutions with supercritical initial energy are proved by further analyzing the properties of ω-limits of solutions.