On relatively elementary definability of graph classes in the class of semigroups

Based on the previously obtained concrete characterization of the endomorphism semigroups of quasi-acyclic reflexive graphs we prove the relatively elementary definability of the class of such graphs in the class of all semigroups. It will permit us to investigate for such graphs the abstract repres...

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Veröffentlicht in:	Algebra universalis 2022-08, Vol.83 (3), Article 27
1. Verfasser:	Molchanov, Vladimir A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algebra Graphical representations Graphs Mathematics Mathematics and Statistics Semigroups
Online-Zugang:	Volltext
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