Global existence of small data weak solutions to the semilinear wave equations with time-dependent scale-invariant damping

Daoyin He, Qianqian Li, Huicheng Yin

In this paper, we are concerned with the global existence of small data weak solutions to the $n-$dimensional semilinear wave equation ${\partial }_t^{2}u-\Delta u+\frac{\mu }{t}{\partial }_{t}u=|u{|}^p$…