RT journal article T1 ON EFFICIENCY AND DUALITY FOR A CLASS OF NONCONVEX NONDIFFERENTIABLE MULTIOBJECTIVE FRACTIONAL VARIATIONAL CONTROL PROBLEMS A1 Antczak, Tadeusz A1 Arana Jiménez, Manuel A1 Treanţă, Savin A2 Estadística e Investigación Operativa K1 nondifferentiable multiobjective fractional variational control problem K1 efficient solution K1 optimality conditions K1 (generalized) univexity K1 Mond–Weir duality K1 Wolfe duality AB In this paper, we consider the class of nondifferentiable multiobjectivefractional variational control problems involving the nondifferentiable terms in thenumerators and in the denominators. Under univexity and generalized univexity hypotheses, we prove optimality conditions and various duality results for such nondifferentiable multiobjective fractional variational control problems. The results establishedin the paper generalize many similar results established earlier in the literature forsuch nondifferentiable multiobjective fractional variational control problems. PB AGH University of Science and Technology SN 2300-6919 YR 2023 FD 2023 LK http://hdl.handle.net/10498/31798 UL http://hdl.handle.net/10498/31798 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 11-nov-2026