Small cutsets in arc-transitive digraphs of prime degree

We give an upper bound for the size of non-trivial sets that have small boundary in a family of arc-transitive digraphs. We state the exact size for these sets in case of prime degree. We also give a lower bound for the size of a minimum non-trivial cutset in the case of arc-transitive Cayley digrap...

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Detalhes bibliográficos
Autor: López Masip, Susana-Clara
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2013
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/66454
Acesso em linha:https://doi.org/10.1016/j.dam.2013.02.005
http://hdl.handle.net/10459.1/66454
Access Level:Acceso aberto
Palavra-chave:Arc-transitive
Cayley digraph
2-atom
Vosperian
Descrição
Resumo:We give an upper bound for the size of non-trivial sets that have small boundary in a family of arc-transitive digraphs. We state the exact size for these sets in case of prime degree. We also give a lower bound for the size of a minimum non-trivial cutset in the case of arc-transitive Cayley digraphs of prime degree.