Results 31 to 40 of about 2,800 (262)

Track Layouts of Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2004
A (k,t)-track layout of a graph G consists of a (proper) vertex t-colouring of G, a total order of each vertex colour class, and a (non-proper) edge k-colouring such that between each pair of colour classes no two monochromatic edges cross.
Vida Dujmović   +2 more
doaj   +2 more sources

A PROCEDURE FOR DERIVING ODD-GRACEFUL CHROMATIC NUMBERS OF GRAPHS

open access: yesUral Mathematical Journal
Let \(G:=(V,E)\) be an undirected finite simple graph with vertex set \(V\) and edge set \(E\). A function \(c:V(G)\rightarrow \{1,2,\ldots,k\},\) for some positive integer \(k\), such that \(c(u)\neq c(v)\) for every edge \(uv\in E(G)\), is called a ...
I Nengah Suparta   +3 more
doaj   +1 more source

Facial parity edge colouring

open access: yesArs Mathematica Contemporanea, 2011
A facial parity edge colouring of a connected bridgeless plane graph is an edge colouring in which no two face-adjacent edges (consecutive edges of a facial walk of some face) receive the same colour, in addition, for each face α and each colour c, either no edge or an odd number of edges incident with α is coloured with c.
Czap, Július   +2 more
openaire   +3 more sources

A note on the vertex-distinguishing index for some cubic graphs [PDF]

open access: yesOpuscula Mathematica, 2004
The vertex-distinguishing index of a graph \(G\) (\(\operatorname{vdi}(G)\)) is the minimum number of colours required to colour properly the edges of a graph in such a way that any two vertices are incident with different sets of colours.
Karolina Taczuk, Mariusz Woźniak
doaj  

Distinguishing graphs by edge-colourings

open access: yesEuropean Journal of Combinatorics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rafal Kalinowski, Monika Pilsniak
openaire   +1 more source

Bilangan Kromatik Grap Commuting dan Non Commuting Grup Dihedral

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2015
Commuting graph is a graph that has a set of points X and two different vertices to be connected directly if each commutative in G. Let G non abelian group and Z(G) is a center of G.
Handrini Rahayuningtyas   +2 more
doaj   +1 more source

A theorem in edge colouring

open access: yesDiscrete Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Distance edge-colourings and matchings

open access: yesDiscrete Applied Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ross J. Kang, Putra Manggala
openaire   +3 more sources

Edge-colouring random graphs

open access: yesJournal of Combinatorial Theory, Series B, 1988
Let \(G_{n,p}\) be the random graph with vertex set \(V_ n=\{1,2,...,n\}\) in which the \(\binom{n}{2}\) possible edges occur independently with probability p.
Alan M. Frieze   +3 more
openaire   +2 more sources

Properly Edge-Coloured Subgraphs in Colourings of Bounded Degree [PDF]

open access: yesGraphs and Combinatorics, 2010
The smallest \(n\) such that every coloring of the edges of the \(n\)-vertex complete graph \(K_n\) must contain a monochromatic star \(K_{1,s+1}\) or a properly edge-colored \(K_t\) is denoted by \(f(s,t)\), Its existence is guaranteed by the Erdős-Rado Canonical Ramsey theorem.
Klas Markström   +2 more
openaire   +2 more sources

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