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Relating a Locally Compact Abelian Group to Its Bohr Compactification

✍ Scribed by W.W. Comfort; Salvador Hernández; F.Javier Trigos-Arrieta


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
923 KB
Volume
120
Category
Article
ISSN
0001-8708

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✦ Synopsis


We find several conditions on a locally compact Abelian group G necessary and sufficient that G + , the group G in the topology inherited from its Bohr compactification, is realcompact. We show further for such G that every continuous real-valued function from a closed subgroup of G + extends continuously over G + ; when in addition G is discrete, every continuous function from a subgroup of G + to a complete metric space extends continuously over G + . These results respond to several of the questions posed by E. K. van Douwen [Topology and Its Applications 34 (1990), 69 91].


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