摘要
给出了Hilbert空间上非扩张映象的一个不动点定理,改进并推广了1982年,Duqundji和Grahas在Hilbert空间中对非扩张映象给出的类似以于Altman定理的一个新的不动点定理相应的结果.
In this paper,a fixed point theorem fon non-expansive mapping is given in Hilbert space,corresponding results in reference [1] are generalized and improved.