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Using Abadie\u2019s constraint qualification and convexificators, we provide Karush\u2013Kuhn\u2013Tucker necessary optimality conditions by converting the initial problem into a bi-criteria optimization problem. Furthermore, we establish sufficient optimality conditions under the asymptotic convexity assumption.<\/jats:p>","DOI":"10.1051\/ro\/2020066","type":"journal-article","created":{"date-parts":[[2020,6,18]],"date-time":"2020-06-18T18:52:36Z","timestamp":1592506356000},"page":"1-11","source":"Crossref","is-referenced-by-count":7,"title":["Optimality conditions for nonsmooth interval-valued and multiobjective semi-infinite programming"],"prefix":"10.1051","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6041-9215","authenticated-orcid":false,"given":"Mohsine","family":"Jennane","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1434-2541","authenticated-orcid":false,"given":"El Mostafa","family":"Kalmoun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lahoussine","family":"Lafhim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"250","published-online":{"date-parts":[[2021,3,3]]},"reference":[{"key":"R1","doi-asserted-by":"crossref","first-page":"1445","DOI":"10.1080\/02331934.2017.1337763","volume":"66","author":"Ansari Ardali","year":"2017","journal-title":"Optimization"},{"key":"R2","doi-asserted-by":"crossref","first-page":"1133","DOI":"10.1016\/S0252-9602(17)30062-0","volume":"37","author":"Antczak","year":"2017","journal-title":"Acta Math. 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