In 1949, M. Riesz  generalized the Riemann- Liouville integral of one-variable to high dimensional Euclidean spaces and obtained a powerful method now known as the Riesz integral for studying wave operators. In this paper we apply the Riesz integral to get the global space-time estimate.
|頁（從 - 到）||1027-1038|
|期刊||Rocky Mountain Journal of Mathematics|
|出版狀態||已出版 - 1994|