Characterizations of differentiability for h-convex functions in stratified groups
Characterizations of differentiability for h-convex functions in stratified groups
Using the notion of h-subdifferential, we characterize both first and second order differentiability of h-convex functions in stratified groups.Besides some new results involving the h-subdifferential of h-convex functions, we show that at all h-differentiability points of an h-convex function, the existence of a second order expansion coincides with a suitable …