Filters and semigroup properties
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The existence of non-fixed, almost translation invariant ultrafilters on any infinite semigroupS satisfying some algebraic properties is established using an ultrafilter approach. The structure of the Stone-Čech compactification of any discrete semigroup is investigated using filters and closed subsets ofßS.
KeywordsClosed Subset Left Ideal Semigroup Forum Topological Semigroup Minimal Ideal
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