Title

Finding Delta(Sigma) for a Surface Sigma of Characteristic chi(Sigma) =-5

Authors

Authors

R. Luo;Y. Zhao

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Graph Theory

Keywords

edge colorings; class one; class two; critical graphs; surfaces; INDEX-CRITICAL GRAPHS; EDGE COLORINGS; MAXIMUM DEGREE-7; Mathematics

Abstract

For each surface Sigma, we define Delta(Sigma)= max{Delta(G)|G is a class two graph of maximum degree Delta(G) that can be embedded in Sigma}. Hence, Vizing's Planar Graph Conjecture can be restated as Delta(Sigma) = 5 if Sigma is a plane. In this paper, we show that Delta(Sigma)= 9 if Sigma is a surface of characteristic chi(Sigma) = -5. (C) 2010 Wiley Periodicals, Inc. J Graph Theory 68: 148-168, 2011

Journal Title

Journal of Graph Theory

Volume

68

Issue/Number

2

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

148

Last Page

168

WOS Identifier

WOS:000294818900007

ISSN

0364-9024

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