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A reflexive digraph that is retraction trivial but not endomorphism trivial

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초록

In this note we give an example of a reflexive digraph that has no non-trivial retractions, but does have non-trivial endomorphisms. (C) 2021 Elsevier B.V. All rights reserved.

키워드

Retract-trivial reflexive digraph; Endomorphism non-trivial; Universal algebra; Graph homomorphism
제목
A reflexive digraph that is retraction trivial but not endomorphism trivial
저자
Siggers, Mark
DOI
10.1016/j.disc.2021.112713
발행일
2022-03
유형
Article
저널명
Discrete Mathematics
권
345
호
3

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