Semigroups of Strong Endomorphisms of Infinite Graphs and Hypergraphs
We define a class of infinite undirected graphs and a class of infinite n -regular hypergraphs and prove that any semigroup of all strong endomorphisms of the graphs and hypergraphs from these classes is isomorphic to the wreath product of a transformation monoid and a small category. We establish t...
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Veröffentlicht in: | Ukrainian mathematical journal 2013-11, Vol.65 (6), p.823-834 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We define a class of infinite undirected graphs and a class of infinite
n
-regular hypergraphs and prove that any semigroup of all strong endomorphisms of the graphs and hypergraphs from these classes is isomorphic to the wreath product of a transformation monoid and a small category. We establish the criterional conditions for the regularity of the semigroup of strong endomorphisms of infinite n-regular hypergraphs. |
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ISSN: | 0041-5995 1573-9376 |
DOI: | 10.1007/s11253-013-0820-8 |