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Title: A categorical account of the localic closed subgroup theorem (English)
Author: Townsend, Christopher
Language: English
Journal: Commentationes Mathematicae Universitatis Carolinae
ISSN: 0010-2628 (print)
ISSN: 1213-7243 (online)
Volume: 48
Issue: 3
Year: 2007
Pages: 541-553
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Category: math
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Summary: Given an axiomatic account of the category of locales the closed subgroup theorem is proved. The theorem is seen as a consequence of a categorical account of the Hofmann-Mislove theorem. The categorical account has an order dual providing a new result for locale theory: every compact subgroup is necessarily fitted. (English)
Keyword: locale
Keyword: power locale
Keyword: Hofmann-Mislove theorem
Keyword: closed subgroup
Keyword: compact locale
Keyword: fitted sublocale
Keyword: categorical logic
MSC: 06D22
MSC: 06D50
MSC: 18B30
MSC: 18B40
MSC: 54B20
MSC: 54B30
idZBL: Zbl 1199.06039
idMR: MR2374933
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Date available: 2009-05-05T17:04:36Z
Last updated: 2012-05-01
Stable URL: http://hdl.handle.net/10338.dmlcz/119678
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Reference: [T05] Townsend C.F.: A categorical account of the Hofmann-Mislove theorem.Math. Proc. Cambridge Philos. Soc. 139 (2005), 441-456. Zbl 1104.06008, MR 2177170
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