摘要
In this paper we characterize completely the septuple (Formula presented.) such that the fractional integration operator It, of order t∈C, is bounded between two mixed norm spaces: (Formula presented.) We treat three types of definitions for It: Hadamard, Flett, and Riemann-Liouville. Our main result (Theorem 2) extends that of Buckley-Koskela-Vukotić in 1999 on the Bergman spaces (Theorem B), and the case t=0 recovers the embedding theorem of Arévalo in 2015 (Corollary 3). The corresponding result for the Hardy spaces Hp(D), of type Riemann-Liouville, is due to Hardy and Littlewood in 1932.
原文 | ???core.languages.en_GB??? |
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文章編號 | 45 |
期刊 | Complex Analysis and Operator Theory |
卷 | 18 |
發行號 | 3 |
DOIs | |
出版狀態 | 已出版 - 4月 2024 |