(1) The Center for Healthcare Industry Performance Studies, 1550 Old Henderson Road, Columbus, OH, 43220, U.S.A;(2) Department of Mathematics, Western Kentucky University, Bowling Green, KY, 42101, U.S.A
Abstract:
We describe the semilattice of ordered compactifications of X × Y smaller than oX × oY where X and Y are certain totally ordered topological spaces, and where oZ denotes the Stone–ech ordered- or Nachbin-compactification of Z. These basic cases are used to illustrate techniques for describing the semilattice of ordered compactifications of X × Y smaller than oX × oY for arbitrary totally ordered topological spaces X and Y. Such products X × Y provide many counterexamples in the theory of ordered compactifications.