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author:

Lan, Kaiyang (Lan, Kaiyang.) [1] | Liu, Feng (Liu, Feng.) [2] | Zhou, Yidong (Zhou, Yidong.) [3]

Indexed by:

EI Scopus SCIE

Abstract:

Let l >= 2 be a positive integer and let gl denote the family of graphs which have girth 2l + 1 and have no holes of odd length at least 2l + 3. Chudnovsky and Seymour proved that every graph G is an element of g(2) is three-colorable. In 2022, Wu, Xu and Xu conjectured that every graph G is an element of boolean OR 1 gl is three-colorable. Soon after, Wu, Xu and Xu confirmed the case l = 3. In this note, we prove that every graph G is an element of gl with radius at most l + 1 is three-colorable. This generalizes the results of Xu, Yu and Zha in 2017. (c) 2022 Elsevier B.V. All rights reserved.

Keyword:

Chromatic number Induced odd cycles Radius

Community:

  • [ 1 ] [Lan, Kaiyang]Fuzhou Univ, Ctr Discrete Math, Fuzhou 350003, Fujian, Peoples R China
  • [ 2 ] [Zhou, Yidong]Fuzhou Univ, Ctr Discrete Math, Fuzhou 350003, Fujian, Peoples R China
  • [ 3 ] [Liu, Feng]East China Normal Univ, Dept Math, Shanghai 200241, Peoples R China

Reprint 's Address:

  • [Liu, Feng]East China Normal Univ, Dept Math, Shanghai 200241, Peoples R China;;

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Source :

DISCRETE APPLIED MATHEMATICS

ISSN: 0166-218X

Year: 2023

Volume: 326

Page: 33-36

1 . 0

JCR@2023

1 . 0 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:35

JCR Journal Grade:3

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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