摘要
该文用拓扑度理论推广了Altman关于全连续算子的一个不动点定理,建立了一个推广定理,并由此定理将Altman定理中全连续算于A的条件||Ax-x||(?)≥||Ax||(?)-||x||(?)由a=2改进为a>1.
Abstract:In this paper using theory of topological degree,some generalizations of Altman's fixed point theorems for compeletly continuous operators are obtained. Firstly,we set up the so-called theorem of generalization, then improve the condition
出处
《江西师范大学学报(自然科学版)》
CAS
1995年第2期149-152,共4页
Journal of Jiangxi Normal University(Natural Science Edition)