Definition
- A bitopological space (X, τ_1, τ_2) is pairwise regular if τ_i closed set C and each point there is a τ_i open set U and a τ_j open set V disjoint from U such that .
Reference
- Raghavan, T.G.; Reilly, I.L. ,Uniformization of quasi-uniform spaces. (English) [J] Bull. Aust. Math. Soc. 23, 413-422 (1981).