On Fixed Point Index and Fixed Point Theorems for Multivalued Semi-closed 1-set-contraction Mappings

作     者：Li Guozhen (Dept. of Math.) 

出 版 物：《江西师范大学学报(自然科学版)》 (Journal of Jiangxi Normal University(Natural Science Edition))

年 卷 期：1991年第4期

页      面：294-297+305页

基　　金：Supported by National Natural Science Foundation of China 

主　　题：fixed point index fixed point theorems 

摘      要：Fitzpatrick P M and Petryshyn W V studied fixed point index and fixed point theorems of multivalued condensing *** aim of this paper is to give a concept of multivalued semi-closed 1-set-contraction mapping which is a more genere.i mapping and to define its fixed point index,and then we prove some fixed point theorems to extend some Petryshyn’ s results.