Existence and non-existence of global solutions to a generalized Modification of the improved Boussinesq equation

In this paper, the existence, both locally and globally in time, the uniqueness of solutions and the non-existence of global solutions to the initial boundary value problem of a generalized Modification of the Improved Boussinesq equation utt−uxx−uxxtt=σ(u)xx are studied and a few examples are discussed. © 1998 B. G. Teubner Stuttgart—John Wiley & Sons, Ltd.