Infra − β − Closed(Open) Sets : New

Hakeem A. Othman
2021 Punjab University journal of mathematics  
As applications on infra − β − open set for new classes of mappings and new concepts topological spaces are introduced, namely, infra- β−continuous, infra−β−irresolute, infra−β−open(closed) mapping, infra − β − τi (i = 0, 1, 2, 3, 4), infra − β − compact and infra − β − connected space. Some of special results and properties which belong to these various applications are established and studied. Moreover, the relations and opposite relations between these new concepts and others are discussed
more » ... d counter examples are given in order to investigate opposite relations.
doi:10.52280//pujm.2021.531201 fatcat:prqlelqpajbflffrtuzgedst5m