Geodesic
A New Subdifferential in Quasiconvex Analysis
Journal of convex analysis, Tome 6 (1999) no. 1, pp. 1-12.

Voir la notice de l'article provenant de la source Heldermann Verlag

We introduce a new notion of subdifferential, which we call Q-subdifferential, for functions defined on subsets of normed spaces. The Q-subdifferential is a subset of the Greenberg-Pierskalla quasi-subdifferential and is therefore useful in quasiconvex analysis.
Classification : 26B25, 28A15
Mots-clés : Greenberg-Pierskalla quasi-subdifferential, Frechet subdifferential, quasiconvexity 
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J. E. Martinez-Legaz; P. H. Sach. A New Subdifferential in Quasiconvex Analysis. Journal of convex analysis, Tome 6 (1999) no. 1, pp. 1-12. http://geodesic.mathdoc.fr/item/JCA_1999_6_1_JCA_1999_6_1_a0/