Results 41 to 50 of about 1,606 (89)

b-Coloring of the Mycielskian of Some Classes of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
The b-chromatic number b(G) of a graph G is the maximum k for which G has a proper vertex coloring using k colors such that each color class contains at least one vertex adjacent to a vertex of every other color class.
Raj S. Francis, Gokulnath M.
doaj   +1 more source

Efficacy and Field Safety of Ilunocitinib for the Control of Allergic Dermatitis in Client‐Owned Dogs: A Multicenter, Double‐Masked, Randomised, Placebo‐Controlled Clinical Trial

open access: yesVeterinary Dermatology, Volume 36, Issue 6, Page 825-837, December 2025.
Background: Inhibition of the Janus kinase pathway is an established treatment for allergic dermatitis. Objective: To evaluate the efficacy and safety of ilunocitinib for control of pruritus in dogs with allergic dermatitis in a randomised, double‐masked clinical trial.
Sophie Forster   +5 more
wiley   +1 more source

A unified proof of Brooks' theorem and Catlin's theorem [PDF]

open access: yes, 2014
We give a new proof of Brooks' theorem that immediately implies a strengthening of Brooks' theorem, known as Catlin's theorem.Comment: Proof rewritten based on referee's ...
Sivaraman, Vaidy
core  

Gallai-Ramsey Numbers for Rainbow S3+S_3^ + and Monochromatic Paths

open access: yesDiscussiones Mathematicae Graph Theory, 2022
Motivated by Ramsey theory and other rainbow-coloring-related problems, we consider edge-colorings of complete graphs without rainbow copy of some fixed subgraphs.
Li Xihe, Wang Ligong
doaj   +1 more source

A Study on Variants of Status Unequal Coloring in Graphs and Its Properties

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
Let G∧ be a simple connected graph with vertex set ϑG∧ and edge set ξG∧. The status of a vertex p∈ϑG∧ is defined as ∑q≠pd(p, q). A subset P of ϑG∧ is called a status unequal dominating set (stu‐dominating set) of G∧; for every q∈ϑ−P, there exists p in P such that p and q are adjacent and st(p) ≠ st(q).
Parvathy Gnana Sambandam   +4 more
wiley   +1 more source

Vertex-Coloring 2-Edge-Weighting of Graphs [PDF]

open access: yes, 2010
A $k$-{\it edge-weighting} $w$ of a graph $G$ is an assignment of an integer weight, $w(e)\in \{1,\dots, k\}$, to each edge $e$. An edge weighting naturally induces a vertex coloring $c$ by defining $c(u)=\sum_{u\sim e} w(e)$ for every $u \in V(G)$. A $k$
Lu, Hongliang   +2 more
core  

Vertex coloring of plane graphs with nonrepetitive boundary paths

open access: yes, 2011
A sequence $s_1,s_2,...,s_k,s_1,s_2,...,s_k$ is a repetition. A sequence $S$ is nonrepetitive, if no subsequence of consecutive terms of $S$ form a repetition. Let $G$ be a vertex colored graph.
Alon   +12 more
core   +1 more source

Generalized Sum List Colorings of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A (graph) property 𝒫 is a class of simple finite graphs closed under isomorphisms. In this paper we consider generalizations of sum list colorings of graphs with respect to properties 𝒫.
Kemnitz Arnfried   +2 more
doaj   +1 more source

The Hanoi Graph H43

open access: yesDiscussiones Mathematicae Graph Theory, 2020
Metric properties of Hanoi graphs Hnp are not as well understood as those of the closely related, but structurally simpler Sierpiński graphs Snp. The most outstanding open problem is to find the domination number of Hanoi graphs.
Hinz Andreas M., Movarraei Nazanin
doaj   +1 more source

M2-Edge Colorings Of Cacti And Graph Joins

open access: yesDiscussiones Mathematicae Graph Theory, 2016
An edge coloring φ of a graph G is called an M2-edge coloring if |φ(v)| ≤ 2 for every vertex v of G, where φ(v) is the set of colors of edges incident with v. Let 𝒦2(G) denote the maximum number of colors used in an M2-edge coloring of G.
Czap Július   +2 more
doaj   +1 more source

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