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 Some geometric solvability theorems in topological vector spaces Bull. Korean Math. Soc. 1997 Vol. 34, No. 2, 273-285 H. Ben-El-Mechaiekh and G. Isac Brock University, Royal Military College of Canada Abstract : We derive from the Browder-Fan fixed point theorem existence results for zeros of (family of) mappings defined on convex subsets of topological vector spaces, with values in vector spaces and subject to geometric conditions of Darboux-type" or to general conditions of inwardness. Keywords : Zeros for obtuse and inward mappings MSC numbers : 47H17, 47H10 Downloads: Full-text PDF