ON THE NEW MULTI-STEP ITERATION PROCESS FOR MULTI-VALUED MAPPINGS IN A COMPLETE GEODESIC SPACE

Abstract

The purpose of this paper is to prove the strong and 4-convergencetheorems of the new multi-step iteration process for multi-valued quasi-nonexpansivemappings in a complete geodesic space. Our results extend and improve someresults in the literature

Keywords

• s. CAT space, Öxed point, multi-valued mapping, strong convergence, 4-convergence

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18. Current address : Aynur SAH·IN, Department of Mathematics, Faculty of Sciences and Arts, Sakarya University, Sakarya, 54050, Turkey.