%0 Journal Article %T Minimax fractional programming problem involving nonsmooth generalized ¦Á-univex functions %A Anurag JAYSWAL %A Rajnish KUMAR %A Dilip KUMAR %J International Journal of Optimization and Control : Theories & Applications %D 2013 %I International Journal of Optimization and Control %X In this paper, we introduce a new class of generalized ¦Á-univex functions where the involved functions are locally Lipschitz. We extend the concept of ¦Á-type I invex [S. K. Mishra, J. S. Rautela, On nondifferentiable minimax fractional programming under generalized ¦Á-type I invexity, J. Appl. Math. Comput. 31 (2009) 317-334] to ¦Á-univexity and an example is provided to show that there exist functions that are ¦Á-univex but not ¦Á-type I invex. Furthermore, Karush-Kuhn-Tucker-type sufficient optimality conditions and duality results for three different types of dual models are obtained for nondifferentiable minimax fractional programming problem involving generalized ¦Á-univex functions. The results in this paper extend some known results in the literature. %K Nondifferentiable minimax fractional programming %K ¦Á-univexity %K sufficient optimality conditions %K duality %U http://dx.doi.org/10.11121/ijocta.01.2013.00102