Strong Chromatic Index Of Planar Graphs With Large Girth
Let Δ ≥ 4 be an integer. In this note, we prove that every planar graph with maximum degree Δ and girth at least 1 Δ+46 is strong (2Δ−1)-edgecolorable, that is best possible (in terms of number of colors) as soon as G contains two adjacent vertices of degree Δ. This improves [6] when Δ ≥ 6....
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
University of Zielona Góra
2014-11-01
|
Series: | Discussiones Mathematicae Graph Theory |
Subjects: | |
Online Access: | https://doi.org/10.7151/dmgt.1763 |
_version_ | 1797757743691464704 |
---|---|
author | Jennhwa Chang Gerard Montassier Mickael Pêche Arnaud Raspaud André |
author_facet | Jennhwa Chang Gerard Montassier Mickael Pêche Arnaud Raspaud André |
author_sort | Jennhwa Chang Gerard |
collection | DOAJ |
description | Let Δ ≥ 4 be an integer. In this note, we prove that every planar graph with maximum degree Δ and girth at least 1 Δ+46 is strong (2Δ−1)-edgecolorable, that is best possible (in terms of number of colors) as soon as G contains two adjacent vertices of degree Δ. This improves [6] when Δ ≥ 6. |
first_indexed | 2024-03-12T18:19:03Z |
format | Article |
id | doaj.art-3e41abf6277a4a8db9fd025be8caea2b |
institution | Directory Open Access Journal |
issn | 2083-5892 |
language | English |
last_indexed | 2024-03-12T18:19:03Z |
publishDate | 2014-11-01 |
publisher | University of Zielona Góra |
record_format | Article |
series | Discussiones Mathematicae Graph Theory |
spelling | doaj.art-3e41abf6277a4a8db9fd025be8caea2b2023-08-02T08:59:11ZengUniversity of Zielona GóraDiscussiones Mathematicae Graph Theory2083-58922014-11-0134472373310.7151/dmgt.1763dmgt.1763Strong Chromatic Index Of Planar Graphs With Large GirthJennhwa Chang Gerard0Montassier Mickael1Pêche Arnaud2Raspaud André3Department of Mathematics/Taida Institute for Mathematical Sciences National Taiwan University, Taipei 10617, Taiwan/National Center for Theoretical Sciences, Taipei Office, TaiwanUniversit Montpellier 2, CNRS-LIRMM, UMR5506 161 rue Ada, 34095 Montpellier Cedex 5, FranceLaBRI - University of Bordeaux 351 cours de la Liberation, 33405 Talence Cedex, FranceLaBRI - University of Bordeaux 351 cours de la Liberation, 33405 Talence Cedex, FranceLet Δ ≥ 4 be an integer. In this note, we prove that every planar graph with maximum degree Δ and girth at least 1 Δ+46 is strong (2Δ−1)-edgecolorable, that is best possible (in terms of number of colors) as soon as G contains two adjacent vertices of degree Δ. This improves [6] when Δ ≥ 6.https://doi.org/10.7151/dmgt.1763planar graphsedge coloring2-distance coloringstrong edgecoloring. |
spellingShingle | Jennhwa Chang Gerard Montassier Mickael Pêche Arnaud Raspaud André Strong Chromatic Index Of Planar Graphs With Large Girth Discussiones Mathematicae Graph Theory planar graphs edge coloring 2-distance coloring strong edgecoloring. |
title | Strong Chromatic Index Of Planar Graphs With Large Girth |
title_full | Strong Chromatic Index Of Planar Graphs With Large Girth |
title_fullStr | Strong Chromatic Index Of Planar Graphs With Large Girth |
title_full_unstemmed | Strong Chromatic Index Of Planar Graphs With Large Girth |
title_short | Strong Chromatic Index Of Planar Graphs With Large Girth |
title_sort | strong chromatic index of planar graphs with large girth |
topic | planar graphs edge coloring 2-distance coloring strong edgecoloring. |
url | https://doi.org/10.7151/dmgt.1763 |
work_keys_str_mv | AT jennhwachanggerard strongchromaticindexofplanargraphswithlargegirth AT montassiermickael strongchromaticindexofplanargraphswithlargegirth AT pechearnaud strongchromaticindexofplanargraphswithlargegirth AT raspaudandre strongchromaticindexofplanargraphswithlargegirth |