An approach to vector subdifferentials
B. D. Craven, B. M. Glover · Optimization · 1996
A vector subdifferential is constructed for various classes of Lipschitz vector functions on Banach spaces. The existence is proved by compactness arguments, not needing explicit construction of sequences. This subdifferential agrees with some definitions of Thibault and Xu, but appears to be more widely applicable. An application is given to semi-infinite programming