On Optimality Conditions in Quasidifferentiable Optimization
Alexander Shapiro · SIAM Journal on Control and Optimization · 1984
A class of quasidifferentiable functions, whose directional derivatives are representable as a difference of two sublinear functions, is introduced. An optimization problem subject to quasidifferentiable equality and inequality constraints is studied. Optimality conditions for this problem are given in terms of sets inclusion. This refines the results of Demyanov, Rubinov and co-workers.