Decay estimates for a class of wave equations

Zihua Guo, Lizhong Peng, Baoxiang Wang

In this paper we use a unified way studying the decay estimate for a class of dispersive semigroup given by $e^{it\varphi (\sqrt{-\Delta })}$, where $\varphi :{\mathbb{R}}^{+}\to \mathbb{R}$ is smooth aw…