Ganster and Reilly used locally closed sets
 to define LC-continuity and LC-irresoluteness.
ii) The union of two IF- regular closed sets
is a IF- regular closed
The generalization of open and closed set
as like [alpha]-open and [alpha]-closed sets
was introduced by Njastad (1965) which is nearly to open and closed set
mu]](S), is the intersection of generalized closed sets
including S and the interior of S, denoted by [i.
Levine  introduced the notion of generalized closed sets
As a generalization of closed sets
, the notion of sg-closed sets
were introduced and studied by Bhattacharyya and Lahiri .
The problem of the evaluation of the mean densities of lower dimensional random closed sets
, and in particular of the mean surface density, is of interest in several real applications.
b) regularly closed sets
of (X, [tau]) are the same as regularly closed sets
of (X, [tau].
builds the foundation for studying random set data, carefully covering generalities in probability, random sets in statistics, finite random sets, random sets and related uncertainly measures, random closed sets
, the Choquet integral, Choquet weal convergence, and aspects of statistical inference with coarse data.
Shot last spring in great secrecy, very little "official" information has filtered out from the closed sets
of Olivier Asselin's eagerly awaited second feature, Le siege de l'aime, and Robert Lepage's latest, Le polygraphe.
The space (X, T) is normal if for disjoint closed sets
A and B, there exist disjoint open sets U and V such that A [subset] U and B [subset] V.