凸分析

convex algebra 　38. the algebra of bifunctions 　39. convex processes comments and references bibliography index

　　convexity has been increasingly important in recent years in the study of extremum problems in many areas of applied mathematics. the purpose of this book is to provide an exposition of the theory of convex sets and functions in which applications to extremum problems play the central role.　　systems of inequalities, the minimum or maximum of a convex function over a convex set, lagrange multipliers, and minimax theorems are among the topics treated, as well as basic results about the structure of convex sets and the continuity and differentiability of convex functions and saddle-functions. duality is emphasized throughout, particularly in the form of fenchers conjugacy correspondence for convex functions.