تقارب e- النقاط السرجية لدوال محدبة – مقعرةبالنسبة إلى مسافة p- هاوسدورف

The aim of this paper is to study and generalize some results concerned with the - solutions of one variable (convex) problems to the - solutions bivriables (convex-concave) problems. We define the - Housdorff distanceon the classes to convex-concave functions and the - Housdorff distance on the classes not necessary convex-concave functions. For the sequence ; We study the convergence of this sequence in terms of level sets convergence, and we show that the sequence is - Housdorff distance to if and only if for each the sequence of sets is - Housdorff distance convergent to . An analogous result holds for - Subdifferential of convex-concave closed functions defined on a Banach space.