On graphs G for which both g and G̅ are claw-free

Shinya Fujita

Discussiones Mathematicae Graph Theory (2005)

  • Volume: 25, Issue: 3, page 267-272
  • ISSN: 2083-5892

Abstract

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Let G be a graph with |V(G)| ≥ 10. We prove that if both G and G̅ are claw-free, then minΔ(G), Δ(G̅) ≤ 2. As a generalization of this result in the case where |V(G)| is sufficiently large, we also prove that if both G and G̅ are K 1 , t -free, then minΔ(G),Δ(G̅) ≤ r(t- 1,t)-1 where r(t-1,t) is the Ramsey number.

How to cite

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Shinya Fujita. "On graphs G for which both g and G̅ are claw-free." Discussiones Mathematicae Graph Theory 25.3 (2005): 267-272. <http://eudml.org/doc/270325>.

@article{ShinyaFujita2005,
abstract = {Let G be a graph with |V(G)| ≥ 10. We prove that if both G and G̅ are claw-free, then minΔ(G), Δ(G̅) ≤ 2. As a generalization of this result in the case where |V(G)| is sufficiently large, we also prove that if both G and G̅ are $K_\{1,t\}$-free, then minΔ(G),Δ(G̅) ≤ r(t- 1,t)-1 where r(t-1,t) is the Ramsey number.},
author = {Shinya Fujita},
journal = {Discussiones Mathematicae Graph Theory},
keywords = {claw-free; complement; maximum degree},
language = {eng},
number = {3},
pages = {267-272},
title = {On graphs G for which both g and G̅ are claw-free},
url = {http://eudml.org/doc/270325},
volume = {25},
year = {2005},
}

TY - JOUR
AU - Shinya Fujita
TI - On graphs G for which both g and G̅ are claw-free
JO - Discussiones Mathematicae Graph Theory
PY - 2005
VL - 25
IS - 3
SP - 267
EP - 272
AB - Let G be a graph with |V(G)| ≥ 10. We prove that if both G and G̅ are claw-free, then minΔ(G), Δ(G̅) ≤ 2. As a generalization of this result in the case where |V(G)| is sufficiently large, we also prove that if both G and G̅ are $K_{1,t}$-free, then minΔ(G),Δ(G̅) ≤ r(t- 1,t)-1 where r(t-1,t) is the Ramsey number.
LA - eng
KW - claw-free; complement; maximum degree
UR - http://eudml.org/doc/270325
ER -

References

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  1. [1] H.J. Broersma, Z. Ryjacek and I. Schiermeyer, Closure concepts - a survey, Graphs and Combin. 16 (2000) 17-48, doi: 10.1007/s003730050002. 

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