Ginchev, Ivan On scalar and vector \(\ell \)-stable functions. (English) Zbl 1205.26007 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 1, 182-194 (2011). Summary: The notion of a scalar function that is \(\ell \)-stable at a point is introduced in [D. Bednařík and K. Pastor, Math. Program. Ser. A 113, No. 2 (A), 283–298 (2008; Zbl 1211.90276)]. In the present paper a characterization of the \(\ell \)-stable functions is obtained. Further, the notion of an \(\ell\)-stable function is generalized from scalar to vector functions. In an application, optimality conditions for constrained vector problems with \(\ell\)-stable data are established. Cited in 5 Documents MSC: 26A16 Lipschitz (Hölder) classes 90C29 Multi-objective and goal programming 90C46 Optimality conditions and duality in mathematical programming 49J52 Nonsmooth analysis Keywords:\(\ell \)-stable functions; Lipschitz functions; \(C^{1,1}\) functions; vector optimization; optimality conditions Citations:Zbl 1211.90276 PDF BibTeX XML Cite \textit{I. Ginchev}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 74, No. 1, 182--194 (2011; Zbl 1205.26007) Full Text: DOI OpenURL References: [1] Bednařík, D.; Pastor, K., On second-order conditions in unconstrained optimization, Math. program. ser. 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