Definition
A subset S of a topological space is called b-open iff
.
Property
- Every semiopen set is b-open.
- Every preopen set is b-open.
- Every b-open set is semipreopen.
Reference
M. Caldas, S. Jafari and R. M. Latif, Applications of b-open sets and (b,s)-continuous functions'', Technical Report of Department of Mathematical Sciences of King Fahd University of Petroleum and Minerals TR400 (July 2008).