A generalization of \(H\)-space and some results on multivalued mappings without convexity
The author introduces the concept of generalized \(H\)-space which is a generalization of \(H\)-space and a generalized \(H\)-KKM mapping which unifies \(H\)-KKM mappings and generalized KKM mappings. By using these concepts some intersection theorems and fixed point theorems in generalized \(H\)-space and some existence theorems of greatest and maximal elements for preference relations in topological spaces are obtained.
scientific article; zbMATH DE number 859219