Weak and strong forms of irresolute maps

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.

# Mathematics # Topological spaces # sg-closed sets # semi-open sets # semi-closed maps # irresolute maps.

Miguel Caldas Cueva (2000). "Weak and strong forms of irresolute maps". International Journal of Mathematics and Mathematical Sciences. https://doi.org/10.1155/s0161171200001502