Definition
A topological space X is said to be nearly pseudocompact iff νX-X is dense in βX-X, where νX and βX denote the Hewitt realcompactification and the Stone-Cech compactification of X, respectively.
Reference
- J. J. Shommer, Relatively realcompact sets and nearly pseudocompact spaces, Comment. Math. Univ. Calorin. 34,2 (1993) 375-382.