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

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Ukrainian Mathematical Journal Aims and scope

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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Authors and Affiliations

  1. Department of Mathematics, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia

    Majed Fakhfakh & Aref Jeribi

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  1. Majed Fakhfakh
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  2. Aref Jeribi
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Correspondence to Majed Fakhfakh.

Additional information

Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 75, No. 8, pp. 1119–1132, August, 2023. Ukrainian DOI: https://doi.org/10.37863/umzh.v75i8.7194.

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Fakhfakh, M., Jeribi, A. Generalized Weakly Demicompact and S-Demicompact Linear Relations and Their Spectral Properties. Ukr Math J 75, 1278–1294 (2024). https://doi.org/10.1007/s11253-023-02261-z

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  • DOI: https://doi.org/10.1007/s11253-023-02261-z

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