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Characterizations of pseudo-differential operators on $${\mathbb {S}}^{1} $$ S 1 based on Separation-Preserving operators
Journal of Pseudo-Differential Operators and Applications ( IF 0.9 ) Pub Date : 2021-02-15 , DOI: 10.1007/s11868-021-00392-0
Zahra Faghih , M. B. Ghaemi

In this paper we prove that a bounded pseudo-differential operator \( T_{\sigma }: L^{p}({\mathbb {S}}^{1}) \rightarrow L^{p}({\mathbb {S}}^{1}) \) for \( 1\le p<\infty \), is a Separation-Preserving operator and give a formula for its symbols \( \sigma \). Using these formulas we give a new representation for the symbol of adjoint and products of two pseudo-differential operators.



中文翻译:

基于保留分离算子的$$ {\ mathbb {S}} ^ {1} $$ S 1上的伪微分算子

本文证明了有界伪微分算子\(T _ {\ sigma}:L ^ {p}({\ mathbb {S}} ^ {1})\ rightarrow L ^ {p}({\ mathbb { S}} ^ {1})\)\(1个\文件p <\ infty \) ,是一个分离-保操作者和得到式为它的符号\(\西格玛\) 。使用这些公式,我们给出了伴随符号和两个伪微分算子的乘积的新表示形式。

更新日期:2021-02-16
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