{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T02:59:37Z","timestamp":1775098777069,"version":"3.50.1"},"reference-count":13,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T00:00:00Z","timestamp":1769817600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Deanship of Graduate Studies and Scientific Research at Qassim University","award":["QU-APC-2026"],"award-info":[{"award-number":["QU-APC-2026"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Axioms"],"abstract":"<jats:p>This paper investigates the existence and uniqueness of solutions for a class of Riemann\u2013Liouville fractional differential systems with delays in Banach spaces that are randomly coupled. The analysis is carried out by constructing an appropriate operator under random conditions and applying Perov\u2019s fixed-point theorem. To illustrate the effectiveness of the obtained results, two examples are presented.<\/jats:p>","DOI":"10.3390\/axioms15020105","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T09:00:33Z","timestamp":1770022833000},"page":"105","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Existence and Uniqueness of Random Coupled Riemann\u2013Liouville Fractional Differential Systems with Delays in Banach Spaces"],"prefix":"10.3390","volume":"15","author":[{"given":"Abdeldjabar","family":"Bourega","sequence":"first","affiliation":[{"name":"Laboratory of Fundamental and Applied Mathematics of Oran (LMFAO), University of Oran 1 Ahmed Ben Bella, Oran 31000, Algeria"},{"name":"Department of Materials Science, Amar Telidji University of Laghouat, Laghouat 03000, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Khelifa","family":"Daoudi","sequence":"additional","affiliation":[{"name":"Institute of Sciences, University Centre of Nour Bachir El Bayadh, El Bayadh 32000, Algeria"},{"name":"Laboratory of Mathematics, Djillali Liabes University, Sidi Bel Abbes 22000, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3588-9693","authenticated-orcid":false,"given":"Mohammed Nour A.","family":"Rabih","sequence":"additional","affiliation":[{"name":"Department of Mathematics, College of Science, Qassim University, Buraydah 51452, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5085-4002","authenticated-orcid":false,"given":"Osman Abdalla","family":"Osman","sequence":"additional","affiliation":[{"name":"Department of Mathematics, College of Science, Qassim University, Buraydah 51452, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Muntasir","family":"Suhail","sequence":"additional","affiliation":[{"name":"Department of Mathematics, College of Science, Qassim University, Buraydah 51452, Saudi Arabia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"742","DOI":"10.4153\/S0008439524000134","article-title":"Theoretical study of a \u03c6-Hilfer fractional differential system in Banach spaces","volume":"67","author":"Zentar","year":"2024","journal-title":"Can. 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