## Abstract In this article we prove that the total chromatic number of a planar graph with maximum degree 10 is 11. Β© 2006 Wiley Periodicals, Inc. J Graph Theory 54: 91β102, 2007
Total chromatic number of regular graphs of odd order and high degree
β Scribed by K.H. Chew
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 695 KB
- Volume
- 154
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
The total chromatic number XT(G) of a graph G is the least number of colours needed to colour the edges and vertices of G so that no incident or adjacent elements receive the same colour. This paper shows that if G is odd order and regular of degree d > [(&? -1)/6]1 V(G)/, then a necessary and sufficient condition for XT(G) = d + 1 is given. This improves a recent result of .
π SIMILAR VOLUMES
Hilton, A.J.W. and H.R. Hind, The total chromatic number ofgraphs having large maximum degree, Discrete Mathematics 117 (1993) 127-140. The total colouring conjecture is shown to be correct for those graphs G having d(G)>21 V(G)I.
We show that a regular graph G of order at least 6 whose complement c is bipartite has total chromatic number d(G) + 1 if and only if (i) G is not a complete graph, and (ii) G#K when n is even. As an aid in"';he proof of this, we also show that , for n>4, if the edges of a Hamiltonian path of Kzn a
## Abstract A __balloon__ in a graph __G__ is a maximal 2βedgeβconnected subgraph incident to exactly one cutβedge of __G__. Let __b__(__G__) be the number of balloons, let __c__(__G__) be the number of cutβedges, and let Ξ±β²(__G__) be the maximum size of a matching. Let \documentclass{article}\usep
A p-factor of a graph G is a regular spanning subgraph of degree p . For G regular of degree d ( G ) and order 2n, let ( p l , ..., p,) be a partition of d ( G ) , so that p i > 0 ( I S i S r ) and p , i i pr = d(G). If H I . ..., H, are edge-disjoint regular spanning subgraphs of G of degrees p I ,
## Abstract Rosenfeld (1971) proved that the Total Colouring Conjecture holds for balanced complete __r__βpartite graphs. Bermond (1974) determined the exact total chromatic number of every balanced complete __r__βpartite graph. Rosenfeld's result had been generalized recently to complete __r__βpar