Abstract
This paper is divided into two parts. In first part, we introduce a new definition of a soft set in certain type of soft topological space which is soft locally convex space, and study its some basic properties. In second part, we obtain a results for a soft-non-expansive mappings on a best approximation soft set in and we prove some fixed soft point theorems for these mappings. Most of the recommendations for studied were referring to the study of a new characteristics of the fixed soft point in the soft metric spaces. So, we expanded some fixed soft point theorems of soft-non-expansive on a best approximation soft set in and establish several relationships between properties these results.
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