Results 21 to 30 of about 6,181 (108)

Edge irregular total labellings for graphs of linear size

open access: yesDiscrete Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brandt, Stephan   +2 more
openaire   +2 more sources

On Total H-Irregularity Strength of the Disjoint Union of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
A simple graph G admits an H-covering if every edge in E(G) belongs to at least to one subgraph of G isomorphic to a given graph H. For the subgraph H ⊆ G under a total k-labeling we define the associated H-weight as the sum of labels of all vertices and
Ashraf Faraha   +5 more
doaj   +1 more source

Total Edge Fibonacci Irregular Labeling of some Star Graphs

open access: yesInternational Journal of Mathematics and Soft Computing, 2015
A total edge Fibonacci irregular labeling f : V (G) S E(G) → {1, 2, . . . ,K} of a graph G = (V,E) is a labeling of vertices and edges of G in such a way that for any different edges xy and x 0 y 0 their weights f( x ) + f( xy ) + f( y ) and f( x 0 ) + f( x 0 y 0 ) + f( y 0 ) are distinct Fibonacci numbers.
R. Sridevi   +2 more
openaire   +1 more source

Computing total edge irregularity strength of some n-uniform cactus chain graphs and related chain graphs

open access: yesIndonesian Journal of Combinatorics, 2020
Given graph G(V,E). We use the notion of total k-labeling which is edge irregular. The notion of total edge irregularity strength (tes) of graph G means the minimum integer k used in the edge irregular total k-labeling of G.
Isnaini Rosyida, Diari Indriati
doaj   +1 more source

On irregularity strength of disjoint union of friendship graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2013
We investigate the vertex total and edge total modication of the well-known irregularity strength of graphs. We have determined the exact values of the total vertex irregularity strength and the total edge irregularity strength of a disjoint union of ...
Ali Ahmad, Martin Baca, Muhammad Numan
doaj   +1 more source

On the Construction of the Reflexive Vertex k-Labeling of Any Graph with Pendant Vertex

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2020
A total k-labeling is a function fe from the edge set to first natural number ke and a function fv from the vertex set to non negative even number up to 2kv, where k=maxke,2kv.
I. H. Agustin   +4 more
doaj   +1 more source

On cycle-irregularity strength of ladders and fan graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2020
A simple graph G = (V(G),E(G)) admits an H-covering if every edge in E(G) belongs to at least one subgraph of G isomorphic to a given graph H. A total k-labeling φ : V(G) ∪ E(G) → {1,2,..., k} is called to be an H-irregular total k-labeling of the graph ...
Faraha Ashraf   +3 more
doaj   +1 more source

THE ENTIRE FACE IRREGULARITY STRENGTH OF A BOOK WITH POLYGONAL PAGES

open access: yesBarekeng, 2015
A face irregular entire labeling is introduced by Baca et al. recently, as a modification of the well-known vertex irregular and edge irregular total labeling of graphs and the idea of the entire colouring of plane graph.
Meilin I. Tilukay, Venn Y. I. Ilwaru
doaj   +1 more source

The total disjoint irregularity strength of some certain graphs

open access: yesIndonesian Journal of Combinatorics, 2020
Under a totally irregular total k-labeling of a graph G = (V, E), we found that for some certain graphs, the edge-weight set W (E) and the vertex-weight set W (V ) of G which are induced by k=ts(G), W(E)∩W(V) is a non empty set.
Meilin I Tilukay, A. N. M. Salman
doaj   +1 more source

Totally irregular total labeling of some caterpillar graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2020
Assume that G(V,E) is a graph with V and E as its vertex and edge sets, respectively. We have G is simple, connected, and undirected. Given a function λ from a union of V and E into a set of k-integers from 1 until k.
Diari Indriati   +4 more
doaj   +1 more source

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