摘要
本文根据空间的欧拉示性数是否为零．来确定该空间的自映射是否有不动点的几个方面的应用。
In this paper,We according to Euler's characteristic of a space whether it be zero ornot,determine the space self-projective whether there be fixed point or not.
关键词
欧拉示性数
自映射
不动点
P-B定理
Euler's Characteristic, Space, Self-projective, fixed point
