Results 21 to 30 of about 45,743 (261)
Brooks' Theorem (1941) is one of the most famous and fundamental theorems in graph theory – it is mentioned/treated in all general monographs on graph theory. It has sparked research in several directions. This book presents a comprehensive overview of this development and see it in context.
Michael Stiebitz +2 more
openalex +2 more sources
Yet another proof of Brooks' theorem
Arguably the simplest variation of this style of proof as we avoid reducing to the cubic case entirely.
Landon Rabern
openalex +5 more sources
An improvement on Brooks' Theorem [PDF]
We prove that $ (G) \leq \max { (G), _2(G), (5/6)( (G) + 1)}$ for every graph $G$ with $ (G) \geq 3$. Here $ _2$ is the parameter introduced by Stacho that gives the largest degree that a vertex $v$ can have subject to the condition that $v$ is adjacent to a vertex whose degree is at least as large as its own.
Landon Rabern
openalex +3 more sources
We show how the Brooks–Chacon Biting Lemma can be combined with the Castaing–Saadoune procedure to provide the complete rate of convergence along subsequences when the uniformly boundedness condition is violated.
George Stoica, Deli Li, Liping Liu
doaj +2 more sources
On Brooks' theorem and some related results.
Helge Tverberg
openalex +4 more sources
Zeros of Convex Combinations of Elementary Families of Harmonic Functions
Brilleslyper et al. investigated how the number of zeros of a one-parameter family of harmonic trinomials varies with a real parameter. Brooks and Lee obtained a similar theorem for an analogous family of harmonic trinomials with poles. In this paper, we
Jennifer Brooks +4 more
doaj +1 more source
Brooks' Theorem and Beyond [PDF]
AbstractWe collect some of our favorite proofs of Brooks' Theorem, highlighting advantages and extensions of each. The proofs illustrate some of the major techniques in graph coloring, such as greedy coloring, Kempe chains, hitting sets, and the Kernel Lemma. We also discuss standard strengthenings of vertex coloring, such as list coloring, online list
Cranston, Daniel W., Rabern, Landon
openaire +2 more sources
Equitable colourings of Borel graphs
Hajnal and Szemerédi proved that if G is a finite graph with maximum degree $\Delta $ , then for every integer $k \geq \Delta +1$ , G has a proper colouring with k colours in which every two colour classes differ in size at most by $1$ ;
Anton Bernshteyn, Clinton T. Conley
doaj +1 more source
Precoloring Extensions of Brooks' Theorem [PDF]
Summary: Let \(G\) be a connected graph with maximum degree \(k\) (other than a complete graph or odd cycle), let \(W\) be a precolored set of vertices in \(G\) inducing a subgraph \(F\), and let \(D\) be the minimum distance in \(G\) between components of \(F\).
Albertson, Michael O. +2 more
openaire +2 more sources
Generalized Hypergraph Coloring
A smooth hypergraph property 𝒫 is a class of hypergraphs that is hereditary and non-trivial, i.e., closed under induced subhypergraphs and it contains a non-empty hypergraph but not all hypergraphs.
Schweser Thomas
doaj +1 more source

