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Title: A note on coclones of topological spaces (English)
Author: Barkhudaryan, Artur
Language: English
Journal: Commentationes Mathematicae Universitatis Carolinae
ISSN: 0010-2628 (print)
ISSN: 1213-7243 (online)
Volume: 52
Issue: 3
Year: 2011
Pages: 403-416
Summary lang: English
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Category: math
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Summary: The clone of a topological space is known to have a strictly more expressive first-order language than that of the monoid of continuous self-maps. The current paper studies coclones of topological spaces (i.e. clones in the category dual to that of topological spaces and continuous maps) and proves that, in contrast to clones, the first-order properties of coclones cannot express anything more than those of the monoid, except for the case of discrete and indiscrete spaces. (English)
Keyword: clone
Keyword: coclone
Keyword: monoid of continuous self-maps
Keyword: clone theory
Keyword: monoid theory
MSC: 08A68
MSC: 54H15
idZBL: Zbl 1249.54073
idMR: MR2843232
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Date available: 2011-08-15T19:18:53Z
Last updated: 2013-10-14
Stable URL: http://hdl.handle.net/10338.dmlcz/141611
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