DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ivković, Stefan | en_US |
dc.date.accessioned | 2023-05-11T09:44:33Z | - |
dc.date.available | 2023-05-11T09:44:33Z | - |
dc.date.issued | 2023 | - |
dc.identifier.issn | 0354-5180 | - |
dc.identifier.uri | http://researchrepository.mi.sanu.ac.rs/handle/123456789/5026 | - |
dc.description.abstract | We extend the results from semi-Fredholm theory of adjointable, bounded C*-operators on the standard C*-module, presented in [3], to the case of general bounded C*-operators on arbitrary Hilbert C*-modules. Next, in the special case of the standard C*-module, we show that the set of those semi-C*-Fredholm operators that are not semi-C*-Weyl operators is open in the norm topology, and that the set of non-adjointable semi-C*-Weyl operators is invariant under perturbations by general compact operators. Moreover, we provide an extended Schechter characterization and a generalized Fredholm alternative in the case of adjointable C*-operators on the standard C*-module. Finally, we provide examples of semi-C*-Fredholm operators. | en_US |
dc.publisher | Faculty of Sciences and Mathematics, University of Niš | en_US |
dc.relation.ispartof | Filomat | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | On non-adjointable semi-C*-Fredholm operators and semi-C*-Weyl operators | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.2298/FIL2317523I | - |
dc.identifier.scopus | 2-s2.0-85150903385 | - |
dc.contributor.affiliation | Mathematics | en_US |
dc.contributor.affiliation | Mathematical Institute of the Serbian Academy of Sciences and Arts | - |
dc.relation.firstpage | 5523 | - |
dc.relation.lastpage | 5539 | - |
dc.relation.issue | 17 | - |
dc.relation.volume | 37 | - |
dc.description.rank | ~M22 | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
crisitem.author.orcid | 0000-0003-2248-8206 | - |
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