Mond–Weir type second order symmetric duality in non-differentiable minimax mixed integer programming problems

A pair of Mond–Weir type non-differentiable second order symmetric minimax mixed integer primal and dual problems in mathematical programming is formulated. Symmetric and self-duality theorems are then established under second order F-pseudo-convexity assumptions. Several known results including that of Gulati and Ahmad [Eur. J. Oper. Res. 101 (1997) 122], Hou and Yang [J. Math. Anal. Appl. 255 (2001) 491] and Mond and Schechter [Bull. Aust. Math. Soc. 53 (1996) 177], as well as others are obtained as special cases.