Results 1 to 10 of about 142 (135)

Adapted List Coloring of Graphs and Hypergraphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2008
We introduce and study adapted list coloring of graphs and hypergraphs. This is a generalization of ordinary list coloring and adapted coloring, and has more applications than these. We prove that the upper bounds on the adaptable choosability of graphs and uniform hypergraphs in terms of maximum degree are sufficiently stronger than those on the ...
Xuding Zhu, Alexandr Kostochka
exaly   +2 more sources

On splittable colorings of graphs and hypergraphs [PDF]

open access: yesJournal of Graph Theory, 2002
AbstractThe notion of a split coloring of a complete graph was introduced by Erdős and Gyárfás [7] as a generalization of split graphs. In this work, we offer an alternate interpretation by comparing such a coloring to the classical Ramsey coloring problem via a two‐round game played against an adversary.
Zoltan Furedi
exaly   +2 more sources

Coloring Face-Hypergraphs of Graphs on Surfaces

open access: yesJournal of Combinatorial Theory Series B, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
André Kündgen
exaly   +2 more sources

Coloring general Kneser graphs and hypergraphs via high-discrepancy hypergraphs [PDF]

open access: yesEuropean Journal of Combinatorics, 2019
9 ...
Sergei Kiselev   +2 more
exaly   +4 more sources

Unique-Maximum and Conflict-Free Coloring for Hypergraphs and Tree Graphs [PDF]

open access: yesLecture Notes in Computer Science, 2012
We investigate the relationship between two kinds of vertex colorings of hypergraphs: unique-maximum colorings and conflict-free colorings. In a unique-maximum coloring, the colors are ordered, and in every hyperedge of the hypergraph the maximum color appears only once. In a conflict-free coloring, in every hyperedge of the hypergraph there is a color
Balázs Keszegh   +2 more
exaly   +4 more sources

Scheduling Problems and Generalized Graph Coloring [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
We define a new type of vertex coloring which generalizes vertex coloring in graphs, hypergraphs, andsimplicial complexes. To this coloring there is an associated symmetric function in noncommuting variables for whichwe give a deletion-contraction ...
John Machacek
doaj   +1 more source

Cartesian product of hypergraphs: properties and algorithms [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2009
Cartesian products of graphs have been studied extensively since the 1960s. They make it possible to decrease the algorithmic complexity of problems by using the factorization of the product.
Alain Bretto   +2 more
doaj   +1 more source

Zero-Free Intervals of Chromatic Polynomials of Mixed Hypergraphs

open access: yesMathematics, 2022
A mixed hypergraph H is a triple (X,C,D), where X is a finite set and each of C and D is a family of subsets of X. For any positive integer λ, a proper λ-coloring of H is an assignment of λ colors to vertices in H such that each member in C contains at ...
Ruixue Zhang   +2 more
doaj   +1 more source

A Theoretical Investigation Based on the Rough Approximations of Hypergraphs

open access: yesJournal of Mathematics, 2022
Rough sets are a key tool to model uncertainty and vagueness using upper and lower approximations without predefined functions and additional suppositions.
Musavarah Sarwar
doaj   +1 more source

Graph Set-colorings And Hypergraphs In Topological Coding

open access: yesCoRR, 2022
In order to make more complex number-based strings from topological coding for defending against the intelligent attacks equipped with quantum computing and providing effective protection technology for the age of quantum computing, we will introduce set-colored graphs admitting set-colorings that has been considerable cryptanalytic significance, and ...
Bing Yao, Fei Ma 0007
openaire   +2 more sources

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