Essential Approximate Pseudospectra of Multivalued Linear Relations

Essential Approximate Pseudospectra of Multivalued Linear Relations

One of the fundamental ideas investigated in A. Ammar, A. Jeribi and K. Mahfoudhi in [?] is that of providing conditions under which the essential approximate pseudospectrum of closed, densely defined linear operators have a relationship with Fredholm theory and perturbation theory. In this paper the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Kragujevac Journal of Mathematics 2025, Vol.49 (2), p.267-285
Hauptverfasser: JERIBI, AREF, MAHFOUDHI, KAMEL
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 285
container_issue 2
container_start_page 267
container_title Kragujevac Journal of Mathematics
container_volume 49
creator JERIBI, AREF
MAHFOUDHI, KAMEL
description One of the fundamental ideas investigated in A. Ammar, A. Jeribi and K. Mahfoudhi in [?] is that of providing conditions under which the essential approximate pseudospectrum of closed, densely defined linear operators have a relationship with Fredholm theory and perturbation theory. In this paper the approximate pseudospectrum and the essential approximate pseudospectrum of closed, densely defined multivalued linear relations are introduced and studied, and work done in the aforementioned papers are extended to general multivalued linear relations
doi_str_mv 10.46793/KgJMat2502.267J
format Article
fullrecord <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_46793_KgJMat2502_267J</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_46793_KgJMat2502_267J</sourcerecordid><originalsourceid>FETCH-LOGICAL-c168t-28ce590ac008896ce4ff5cd1f6440f76b3bff8d48f0d82f33173185e9295ef113</originalsourceid><addsrcrecordid>eNpF0EtLxDAYheEgCpZx9i7zBzp-uTZZDmW8jB0U0XXJpF-kUtuSZET_vVdwdXYvh4eQcwYrqSsrLm6ftzuXuQK-4rraHpGCS9ClAKmOScGkgtJqbk7JMqUXAODGMiGrgtSblHDMvRvoep7j9N6_uoz0PuGhm9KMPkdHp0B3hyH3b244YEebfkQX6QMOLvfTmM7ISXBDwuXfLsjT5eaxvi6bu6ubet2UnmmTS248KgvOAxhjtUcZgvIdC1pKCJXei30IppMmQGd4EIJVghmFlluFgTGxIPDb9XFKKWJo5_h1N360DNofh_bfof12EJ8b2lIo</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Essential Approximate Pseudospectra of Multivalued Linear Relations</title><source>DOAJ Directory of Open Access Journals</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>JERIBI, AREF ; MAHFOUDHI, KAMEL</creator><creatorcontrib>JERIBI, AREF ; MAHFOUDHI, KAMEL ; Department of Mathematics, Faculty of Science, University of Sfax</creatorcontrib><description>One of the fundamental ideas investigated in A. Ammar, A. Jeribi and K. Mahfoudhi in [?] is that of providing conditions under which the essential approximate pseudospectrum of closed, densely defined linear operators have a relationship with Fredholm theory and perturbation theory. In this paper the approximate pseudospectrum and the essential approximate pseudospectrum of closed, densely defined multivalued linear relations are introduced and studied, and work done in the aforementioned papers are extended to general multivalued linear relations</description><identifier>ISSN: 1450-9628</identifier><identifier>EISSN: 2406-3045</identifier><identifier>DOI: 10.46793/KgJMat2502.267J</identifier><language>eng</language><ispartof>Kragujevac Journal of Mathematics, 2025, Vol.49 (2), p.267-285</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,861,4010,27904,27905,27906</link.rule.ids></links><search><creatorcontrib>JERIBI, AREF</creatorcontrib><creatorcontrib>MAHFOUDHI, KAMEL</creatorcontrib><creatorcontrib>Department of Mathematics, Faculty of Science, University of Sfax</creatorcontrib><title>Essential Approximate Pseudospectra of Multivalued Linear Relations</title><title>Kragujevac Journal of Mathematics</title><description>One of the fundamental ideas investigated in A. Ammar, A. Jeribi and K. Mahfoudhi in [?] is that of providing conditions under which the essential approximate pseudospectrum of closed, densely defined linear operators have a relationship with Fredholm theory and perturbation theory. In this paper the approximate pseudospectrum and the essential approximate pseudospectrum of closed, densely defined multivalued linear relations are introduced and studied, and work done in the aforementioned papers are extended to general multivalued linear relations</description><issn>1450-9628</issn><issn>2406-3045</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2025</creationdate><recordtype>article</recordtype><recordid>eNpF0EtLxDAYheEgCpZx9i7zBzp-uTZZDmW8jB0U0XXJpF-kUtuSZET_vVdwdXYvh4eQcwYrqSsrLm6ftzuXuQK-4rraHpGCS9ClAKmOScGkgtJqbk7JMqUXAODGMiGrgtSblHDMvRvoep7j9N6_uoz0PuGhm9KMPkdHp0B3hyH3b244YEebfkQX6QMOLvfTmM7ISXBDwuXfLsjT5eaxvi6bu6ubet2UnmmTS248KgvOAxhjtUcZgvIdC1pKCJXei30IppMmQGd4EIJVghmFlluFgTGxIPDb9XFKKWJo5_h1N360DNofh_bfof12EJ8b2lIo</recordid><startdate>2025</startdate><enddate>2025</enddate><creator>JERIBI, AREF</creator><creator>MAHFOUDHI, KAMEL</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2025</creationdate><title>Essential Approximate Pseudospectra of Multivalued Linear Relations</title><author>JERIBI, AREF ; MAHFOUDHI, KAMEL</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c168t-28ce590ac008896ce4ff5cd1f6440f76b3bff8d48f0d82f33173185e9295ef113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2025</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>JERIBI, AREF</creatorcontrib><creatorcontrib>MAHFOUDHI, KAMEL</creatorcontrib><creatorcontrib>Department of Mathematics, Faculty of Science, University of Sfax</creatorcontrib><collection>CrossRef</collection><jtitle>Kragujevac Journal of Mathematics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>JERIBI, AREF</au><au>MAHFOUDHI, KAMEL</au><aucorp>Department of Mathematics, Faculty of Science, University of Sfax</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Essential Approximate Pseudospectra of Multivalued Linear Relations</atitle><jtitle>Kragujevac Journal of Mathematics</jtitle><date>2025</date><risdate>2025</risdate><volume>49</volume><issue>2</issue><spage>267</spage><epage>285</epage><pages>267-285</pages><issn>1450-9628</issn><eissn>2406-3045</eissn><abstract>One of the fundamental ideas investigated in A. Ammar, A. Jeribi and K. Mahfoudhi in [?] is that of providing conditions under which the essential approximate pseudospectrum of closed, densely defined linear operators have a relationship with Fredholm theory and perturbation theory. In this paper the approximate pseudospectrum and the essential approximate pseudospectrum of closed, densely defined multivalued linear relations are introduced and studied, and work done in the aforementioned papers are extended to general multivalued linear relations</abstract><doi>10.46793/KgJMat2502.267J</doi><tpages>19</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1450-9628
ispartof Kragujevac Journal of Mathematics, 2025, Vol.49 (2), p.267-285
issn 1450-9628
2406-3045
language eng
recordid cdi_crossref_primary_10_46793_KgJMat2502_267J
source DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals
title Essential Approximate Pseudospectra of Multivalued Linear Relations
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-17T19%3A32%3A44IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Essential%20Approximate%20Pseudospectra%20of%20Multivalued%20Linear%20Relations&rft.jtitle=Kragujevac%20Journal%20of%20Mathematics&rft.au=JERIBI,%20AREF&rft.aucorp=Department%20of%20Mathematics,%20Faculty%20of%20Science,%20University%20of%20Sfax&rft.date=2025&rft.volume=49&rft.issue=2&rft.spage=267&rft.epage=285&rft.pages=267-285&rft.issn=1450-9628&rft.eissn=2406-3045&rft_id=info:doi/10.46793/KgJMat2502.267J&rft_dat=%3Ccrossref%3E10_46793_KgJMat2502_267J%3C/crossref%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true