一类有不动点性的Banach空间

Some Banach Spaces with Fixed Polo f Property

本文研究弱一致Opial条件的性质；弱一致Opial条件与弱一致Opial条件的对偶性；证明当对偶空间有弱一致Opial条件时该Banach空间具有不动点性．

In this paper we will show relation of σ(X,X) uniform Optal property and σ(X,X. ) uniform Optal property. We will prove that the space X with X has σ(X,X) uniform Optal property have the fixed point property for nonexpansive mapping on weakly compact nonempty convex set.