Solvability theorems for classes of difference convex functions

Characterization of d.c. functions in terms of quasidifferentials

“…Hiriart-Urruty [9] underlines that the notion of d.c. function, as a natural extension of that of convex function, has revealed its importance in optimization. In the years following that publication d.c. functions have been studied in various aspects: optimization [11][12][13][14][15][16][17][18], duality [19][20][21][22], algorithms [23][24][25][26] and applications [27][28][29].…”