广义弱半紧密和 S 半紧密线性关系及其谱特性

IF 0.5 4区数学 Q3 MATHEMATICS

Ukrainian Mathematical Journal Pub Date : 2023-12-08 DOI:10.1007/s11253-023-02261-z

Majed Fakhfakh, Aref Jeribi

引用次数: 0

摘要

我们扩展了线性关系上的广义弱反迫和相对弱反迫算子的概念，并提出了一些突出的结果。此外，我们还讨论了弗雷德霍姆关系和上半弗雷德霍姆关系理论，并尝试与这些算子建立联系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Generalized Weakly Demicompact and S-Demicompact Linear Relations and Their Spectral Properties

We extend the concept of generalized weakly demicompact and relatively weakly demicompact operators on linear relations and present some outstanding results. Moreover, we address the theory of Fredholm and upper semi-Fredholm relations and make an attempt to establish connections with these operators.

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来源期刊

Ukrainian Mathematical Journal MATHEMATICS, APPLIED-MATHEMATICS

CiteScore

0.90

自引率

20.00%

发文量

107

审稿时长

4-8 weeks

期刊介绍： Ukrainian Mathematical Journal publishes articles and brief communications on various areas of pure and applied mathematics and contains sections devoted to scientific information, bibliography, and reviews of current problems. It features contributions from researchers from the Ukrainian Mathematics Institute, the major scientific centers of the Ukraine and other countries. Ukrainian Mathematical Journal is a translation of the peer-reviewed journal Ukrains’kyi Matematychnyi Zhurnal, a publication of the Institute of Mathematics of the National Academy of Sciences of Ukraine.