Weak and strong forms of irresolute maps

Abstract

We consider new weak and stronger forms of irresolute and semi-closure via the concept sg-closed sets which we call ap-irresolute maps, ap-semi-closed maps and contra-irresolute and use it to obtain a characterization of semi-T1/2 spaces.

Keywords

• Topological spaces
• sg-closed sets
• semi-open sets
• semi-closed maps
• irresolute maps.