摘要
本文利用非线性泛函分析拓扑度理论讨论了映射非零不动点的存在性，并给出了至少存在两个不动点的充分条件。
The purpose of this paper is to establish a theorem on fixed point of mapping on thebasis of topological degree theory in nonlinear functional analysis and to offer a suffi-cient condition for the existence of at least two fixed points.
关键词
映射不动点
拓扑度
零点指数
不动点定理
fixed point of mapping, topological degree, index of singular point
