Hilbert空间上非扩张映象的一个不动点定理

A fixed point theorem for non-expansive mapping in Hilbert space

给出了 Hilbert空间上的非扩张映象的一个不动点定理 ,改进并推广了 Dugundji和Granas在 Hilbert空间中对非扩张映象给出的类似于

A fixed point theorem for non-expansive mapping is given in Hibert space,and has been improved and extended the corresponding result from the new theorem of fixed point made by Dugundji and Granas of non-expansive mappings in Hilbert space,similar to Altman theorem.