Coset extensions of S-sets |
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| Authors: | P.A. Grillet |
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| Affiliation: | (1) Department of Mathematics, Tulane University, New Orleans, LA 70118, U.S.A. |
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| Abstract: | Summary Three weak variants of compactness which lie strictly between compactness and quasicompactness, are introduced. Their basic properties are studied. The interplay with mapping and their direct and inverse preservation under mappings are investigated. In the process three decompositions of compactness are observed. |
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| Keywords: | S-set coset coset extension group coextension Sch& #252 tzenberger group Sch& #252 tzenberger functor atransitive S-set |
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