Abstract
We consider the constrained vector optimization problem min
C
f(x), g(x) ∈ −K, where f:ℝn→ℝm and g:ℝn→ℝp are C1,1 functions, and Cℝm and K
ℝp are closed convex cones with nonempty interiors. Two type of solutions are important for our considerations, namely w-minimizers (weakly efficient points) and i-minimizers (isolated minimizers). We formulate and prove in terms of the Dini directional derivative second-order necessary conditions for a point x0 to be a w-minimizer and second-order sufficient conditions for x0 to be an i-minimizer of order two. We discuss the reversal of the sufficient conditions under suitable constraint qualifications of Kuhn-Tucker type. The obtained results improve the ones in Liu, Neittaanmäki, Křížek [21].
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This paper is dedicated to R.T. Rockafellar whose works have guided and inspired us
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Ginchev, I., Guerraggio, A. & Rocca, M. Second-order conditions in C1,1 constrained vector optimization. Math. Program. 104, 389–405 (2005). https://doi.org/10.1007/s10107-005-0621-4
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DOI: https://doi.org/10.1007/s10107-005-0621-4