Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six

A rainbow t-coloring of a t-connected graph G is an edge coloring such that for any two distinct vertices u and v of G there are at least t internally vertex-disjoint rainbow (u,v)-paths. In this work, we apply a Rank Genetic Algorithm to search for rainbow t-colorings of the family of Moore cages w...

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Main Authors: J. Cervantes-Ojeda, M. Gómez-Fuentes, D. González-Moreno, M. Olsen
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2019/4073905
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author J. Cervantes-Ojeda
M. Gómez-Fuentes
D. González-Moreno
M. Olsen
author_facet J. Cervantes-Ojeda
M. Gómez-Fuentes
D. González-Moreno
M. Olsen
author_sort J. Cervantes-Ojeda
collection DOAJ
description A rainbow t-coloring of a t-connected graph G is an edge coloring such that for any two distinct vertices u and v of G there are at least t internally vertex-disjoint rainbow (u,v)-paths. In this work, we apply a Rank Genetic Algorithm to search for rainbow t-colorings of the family of Moore cages with girth six (t;6)-cages. We found that an upper bound in the number of colors needed to produce a rainbow 4-coloring of a (4;6)-cage is 7, improving the one currently known, which is 13. The computation of the minimum number of colors of a rainbow coloring is known to be NP-Hard and the Rank Genetic Algorithm showed good behavior finding rainbow t-colorings with a small number of colors.
format Article
id doaj-art-2e50c490b3b946f19faaf18b104ce79c
institution Kabale University
issn 1110-757X
1687-0042
language English
publishDate 2019-01-01
publisher Wiley
record_format Article
series Journal of Applied Mathematics
spelling doaj-art-2e50c490b3b946f19faaf18b104ce79c2025-02-03T01:22:08ZengWileyJournal of Applied Mathematics1110-757X1687-00422019-01-01201910.1155/2019/40739054073905Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth SixJ. Cervantes-Ojeda0M. Gómez-Fuentes1D. González-Moreno2M. Olsen3Universidad Autónoma Metropolitana, Cuajimalpa 05348, MexicoUniversidad Autónoma Metropolitana, Cuajimalpa 05348, MexicoUniversidad Autónoma Metropolitana, Cuajimalpa 05348, MexicoUniversidad Autónoma Metropolitana, Cuajimalpa 05348, MexicoA rainbow t-coloring of a t-connected graph G is an edge coloring such that for any two distinct vertices u and v of G there are at least t internally vertex-disjoint rainbow (u,v)-paths. In this work, we apply a Rank Genetic Algorithm to search for rainbow t-colorings of the family of Moore cages with girth six (t;6)-cages. We found that an upper bound in the number of colors needed to produce a rainbow 4-coloring of a (4;6)-cage is 7, improving the one currently known, which is 13. The computation of the minimum number of colors of a rainbow coloring is known to be NP-Hard and the Rank Genetic Algorithm showed good behavior finding rainbow t-colorings with a small number of colors.http://dx.doi.org/10.1155/2019/4073905
spellingShingle J. Cervantes-Ojeda
M. Gómez-Fuentes
D. González-Moreno
M. Olsen
Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six
Journal of Applied Mathematics
title Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six
title_full Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six
title_fullStr Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six
title_full_unstemmed Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six
title_short Rainbow Connectivity Using a Rank Genetic Algorithm: Moore Cages with Girth Six
title_sort rainbow connectivity using a rank genetic algorithm moore cages with girth six
url http://dx.doi.org/10.1155/2019/4073905
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