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Title: Cardinality of retracts of monounary algebras (English)
Author: Jakubíková-Studenovská, Danica
Author: Pócs, Jozef
Language: English
Journal: Czechoslovak Mathematical Journal
ISSN: 0011-4642 (print)
ISSN: 1572-9141 (online)
Volume: 58
Issue: 2
Year: 2008
Pages: 469-479
Summary lang: English
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Category: math
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Summary: For an uncountable monounary algebra $(A,f)$ with cardinality $\kappa $ it is proved that $(A,f)$ has exactly $2^{\kappa }$ retracts. The case when $(A,f)$ is countable is also dealt with. (English)
Keyword: monounary algebra
Keyword: retract
Keyword: cardinality
MSC: 08A60
idZBL: Zbl 1174.08303
idMR: MR2411102
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Date available: 2009-09-24T11:56:07Z
Last updated: 2020-07-03
Stable URL: http://hdl.handle.net/10338.dmlcz/128270
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