๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Domination numbers and zeros of chromatic polynomials

โœ Scribed by F.M. Dong; K.M. Koh


Book ID
108113821
Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
202 KB
Volume
308
Category
Article
ISSN
0012-365X

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


Zero Knowledge and the Chromatic Number
โœ Uriel Feige; Joe Kilian ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 483 KB

We present a new technique, inspired by zero-knowledge proof systems, for proving lower bounds on approximating the chromatic number of a graph. To illustrate this technique we present simple reductions from max-3-coloring and max-3-sat, showing that it is hard to approximate the chromatic number wi

The largest real zero of the chromatic p
โœ D.R. Woodall ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 507 KB

It is proved that if every subcontraction of a graph G contains a vertex with degree at most k, then the chromatic polynomial of G is positive throughout the interval (k, c~); Kk+l shows that this interval is the largest possible. It is conjectured that the largest real zero of the chromatic polynom

Number of zeros of interval polynomials
โœ Mingbo Zhang; Jiansong Deng ๐Ÿ“‚ Article ๐Ÿ“… 2013 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 341 KB
Circular Chromatic Numbers and Fractiona
โœ G.J. Chang; L. Huang; X. Zhu ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 171 KB

This paper studies circular chromatic numbers and fractional chromatic numbers of distance graphs G(Z , D) for various distance sets D. In particular, we determine these numbers for those D sets of size two, for some special D sets of size three, for