Lifespan estimates for semilinear damped wave equation in a two-dimensional exterior domain

Masahiro Ikeda, Motohiro Sobajima, Koichi Taniguchi +1

Lifespan estimates for semilinear damped wave equations of the form ${\partial }_t^{2}u-\Delta u+{\partial }_{t}u=|u{|}^p$ in a two dimensional exterior domain endowed with the Dirichlet boundary co…