End simplicial vertices in path graphs

A graph is a path graph if there is a tree, called UV-model, whose vertices are the maximal cliques of the graph and for each vertex x of the graph the set of maximal cliques that contains it induces a path in the tree. A graph is an interval graph if there is a UV-model that is a path, called an in...

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Autores principales: Gutiérrez, Marisa, Tondato, Silvia Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87295
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id I19-R120-10915-87295
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Matemática
Chordal graphs
Clique trees
Path graphs
spellingShingle Matemática
Chordal graphs
Clique trees
Path graphs
Gutiérrez, Marisa
Tondato, Silvia Beatriz
End simplicial vertices in path graphs
topic_facet Matemática
Chordal graphs
Clique trees
Path graphs
description A graph is a path graph if there is a tree, called UV-model, whose vertices are the maximal cliques of the graph and for each vertex x of the graph the set of maximal cliques that contains it induces a path in the tree. A graph is an interval graph if there is a UV-model that is a path, called an interval model. Gimbel [3] characterized those vertices in interval graphs for which there is some interval model where the interval corresponding to those vertices is an end interval. In this work, we give a characterization of those simplicial vertices x in path graphs for which there is some t/V-model where the maximal clique containing x is a leaf in this UV-model.
format Articulo
Articulo
author Gutiérrez, Marisa
Tondato, Silvia Beatriz
author_facet Gutiérrez, Marisa
Tondato, Silvia Beatriz
author_sort Gutiérrez, Marisa
title End simplicial vertices in path graphs
title_short End simplicial vertices in path graphs
title_full End simplicial vertices in path graphs
title_fullStr End simplicial vertices in path graphs
title_full_unstemmed End simplicial vertices in path graphs
title_sort end simplicial vertices in path graphs
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/87295
work_keys_str_mv AT gutierrezmarisa endsimplicialverticesinpathgraphs
AT tondatosilviabeatriz endsimplicialverticesinpathgraphs
bdutipo_str Repositorios
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