摘要
本文研究了Ｂａｎａｃｈ空间几何性质的对偶保持性，得到了端点，ＷＭＬＵＲ点。
This paper studies the properties of preserving extreme points in Banach spaces and obtains the following theorem: Let X be a Banach space, A is a non-empty convex set of X , then x is a preserving extreme point if and only if x is a WMLUR point of A .
