*Definition [#w67dca9b]
A topological space X is called d*-compact if every cover of X by [[strongly open F_σ set]]s has a finite subcover.
*Reference [#m4e412af]
J. K. Hohli and D. Singh, ''Between compactness and quasicompactness'', Acta. Math. Hungar. 106 (4) (2005), 317-329.