Automorphisms of endomorphism semigroups of reflexive digraphs

A reflexive digraph is a pair (X,ρ), where X is an arbitrary set and ρ is a reflexive binary relation on X. Let End (X, ρ) be the semigroup of endomorphisms of (X, ρ). We determine the group of automorphisms of End(X,ρ) for: digraphs containing an edge not contained in a cycle, digraphs consisting o...

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Bibliographic Details
Main Author: Araújo, João (author)
Other Authors: Dobson, Edward (author), Konieczny, Janusz (author)
Format: article
Language:eng
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/10400.2/2006
Country:Portugal
Oai:oai:repositorioaberto.uab.pt:10400.2/2006