๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The chromaticity of wheels with a missing spoke

โœ Scribed by G.L. Chia


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
268 KB
Volume
82
Category
Article
ISSN
0012-365X

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


The chromaticity of wheels with a missin
โœ G.L. Chia ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 309 KB

In the previous paper, it was shown that the graph U. รท 1 obtained from the wheel W n รท 1 by deleting a spoke is uniquely determined by its chromatic polynomial if n >i 3 is odd. In this paper, we show that the result is also true for even n >~ 4 except when n = 6 in which case, the graph W given in

The chromaticity of wheels
โœ Shao-Ji Xu; Nian-Zu Li ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 746 KB

In this paper we prove that the wheel W,, show tha\*: W, is not chromatically unique. +1 is chromatically unique ifnis even. We also Two graphs G and H are said to be chromatically equivalent 2 they ha?re the same chromlatic polynomial, i.e. ## , P(G, A)==P(H, A). A graph G is said to be chromatic

The chromatic Ramsey number of odd wheel
โœ Nathalie Paul; Claude Tardif ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 110 KB

We prove that the chromatic Ramsey number of every odd wheel W 2k+1 , k โ‰ฅ 2 is 14. That is, for every odd wheel W 2k+1 , there exists a 14-chromatic graph F such that when the edges of F are two-coloured, there is a monochromatic copy of W 2k+1 in F, and no graph F with chromatic number 13 has the s

Circular Chromatic Numbers of Distance G
โœ Lingling Huang; Gerard J Chang ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 114 KB

Given positive integers m, k, s with m > sk, let D m,k,s represent the set {1, 2, . . . , m}\{k, 2k, . . . , sk}. The distance graph G(Z , D m,k,s ) has as vertex set all integers Z and edges connecting i and j whenever |i -j| โˆˆ D m,k,s . This paper investigates chromatic numbers and circular chroma

The chromaticity of certain graphs with
โœ Nian-Zu Li; Earl Glen Whitehead Jr ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 397 KB

Let W(n, k) denote the graph of order n obtained from the wheel I+', by deleting all but k consecutive spokes. In this note, we study the chromaticity of graphs which share certain properties of U'(n, 6) which can be obtained from the coeffictents of the chromatic polynomial of W(n, 6). In particula