SEMI-HOMOTOPY AND SEMI-FUNDAMENTAL GROUPS

Abstract

In this study we introduce the notions of semi-homotopy of semi- continuous maps and of semi-paths. We also construct a group structure, which will be called semi-fundamental group, using semi-loops and explore some properties of semi-homotopy and semi-fundamental groups.

Keywords

• Semi-open sets,semi-closed sets,homotopy,fundamental groups

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