Last-modified: 2010-12-30 (木) 22:17:22
A space X is called point-star preorthocompact provided that, if C is an open cover of X, there is a reflexive relation V on X so that, for each x in X, V(x) is open and .
- Hans-Peter Kunzi and Peter Fletcher, Some Questions Related to Almost 2-Fully Normal Spaces, Rocky Mountain J. Math. Vol.15 (Nov. 1985).