pairwise T_0 in the sense of Murdeshwar and Naimpally

Definition

• A bitopological space (X,τ_1, τ_2) is pairwise T_0 in the sense of Murdeshwar and Naimpally (briefly MN-p-T_0) if for every pair of distinct points of X , there exists a 1- or a 2-neighbourhood of one point but not containing the other.

Reference

• Reilly, Ivan L.,On bitopological separation properties.,Nanta Math. 5 (1972), no. 2, 14–25.