{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,20]],"date-time":"2025-11-20T06:43:58Z","timestamp":1763621038124,"version":"3.41.2"},"reference-count":21,"publisher":"World Scientific Pub Co Pte Ltd","issue":"05","funder":[{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of China","doi-asserted-by":"crossref","award":["11861002"],"award-info":[{"award-number":["11861002"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100012490","name":"North Minzu University","doi-asserted-by":"crossref","award":["ZDZX201804"],"award-info":[{"award-number":["ZDZX201804"]}],"id":[{"id":"10.13039\/501100012490","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Ningxia Higher Education","award":["NXYLXK2017B09"],"award-info":[{"award-number":["NXYLXK2017B09"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Asia Pac. J. Oper. Res."],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:p> This paper is devoted to the investigation of optimality conditions for approximate quasi-weakly efficient solutions to a class of nonsmooth Vector Equilibrium Problem (VEP) via convexificators. First, a necessary optimality condition for approximate quasi-weakly efficient solutions to problem (VEP) is presented by making use of the properties of convexificators. Second, the notion of approximate pseudoconvex function in the form of convexificators is introduced, and its existence is verified by a concrete example. Under the introduced generalized convexity assumption, a sufficient optimality condition for approximate quasi-weakly efficient solutions to problem (VEP) is also established. Finally, a scalar characterization for approximate quasi-weakly efficient solutions to problem (VEP) is obtained by taking advantage of Tammer\u2019s function. <\/jats:p>","DOI":"10.1142\/s0217595921500470","type":"journal-article","created":{"date-parts":[[2021,11,5]],"date-time":"2021-11-05T00:44:30Z","timestamp":1636073070000},"source":"Crossref","is-referenced-by-count":4,"title":["Optimality of Approximate Quasi-Weakly Efficient Solutions for Vector Equilibrium Problems via Convexificators"],"prefix":"10.1142","volume":"39","author":[{"given":"Guolin","family":"Yu","sequence":"first","affiliation":[{"name":"School of Mathematics and Information Science, North Minzu University, Yinchuan, 750021, Ningxia, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Siqi","family":"Li","sequence":"additional","affiliation":[{"name":"School of Mathematics and Information Science, North Minzu University, Yinchuan, 750021, Ningxia, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiao","family":"Pan","sequence":"additional","affiliation":[{"name":"School of Mathematics and Information Science, North Minzu University, Yinchuan, 750021, Ningxia, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenyan","family":"Han","sequence":"additional","affiliation":[{"name":"School of Mathematics and Information Science, North Minzu University, Yinchuan, 750021, Ningxia, P. R. 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