Chromatic classes of 2-connected (n, n + 2)-graphs which are horneomorphic to K4 and have girth 5 are given in this paper. Lemma 1. (a) If(6,~,rl)Β’ Uj~3{(j,j-2,j+ 1), (j-2,j+2,j-1)} andFl (6,~,rl)~ Fl(6t, y',rlt ), then F1(6,7,~/) ~ Ft(6',7',Β’).
Chromatic classes of certain 2-connected (n, n + 2)-graphs II
β Scribed by X.E. Chen; K.Z. Ouyang
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 299 KB
- Volume
- 172
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
Let S denote the class of 2-connected (n, n + 2)-graphs which have girth 5 and are not homeomorphic to K4. Chromatic classes of graphs in S are determined in this paper.
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