A closure operator for interval order structures has been introduced and its basic properties analysed. The operator is an equivalence of 3-closure operator of [11] for stratified ...
We argue that closure operators are fundamental tools for the study of relationships between order structures and their sequence representations. We also propose and analyse a clos...
: We investigate the problem of decomposing a language into a catenation of nontrivial languages, none of which can be decomposed further. In many cases this leads to the operation...
Some recent results provide su cient conditions for complete lattices of closure operators on complete lattices, ordered pointwise, to be pseudocomplemented. This paper gives resu...