Results 31 to 40 of about 100,347 (247)

Decomposition of Certain Complete Graphs and Complete Multipartite Graphs into Almost-bipartite Graphs and Bipartite Graphs

open access: yesTheory and Applications of Graphs, 2020
In his classical paper [14], Rosa introduced a hierarchical series of labelings called ρ, σ, β and α labeling as a tool to settle Ringel’s Conjecture which states that if T is any tree with m edges then the complete graph K2m+1 can be decomposed into 2m +
G. Sethuraman, M. Sujasree
doaj   +1 more source

Gaussian Tribonacci R-Graceful Labeling of Some Tree Related Graphs

open access: yesRatio Mathematica, 2022
Let r be any natural number. An injective function , where  is the Gaussian Tribonacci number in the Gaussian Tribonacci sequence is said to be Gaussian Tribonacci r-graceful labeling if the induced edge labeling such that  is bijective.
K Sunitha, M Sheriba
doaj   +1 more source

Anti-k-labeling of graphs

open access: yesApplied Mathematics and Computation, 2019
It is well known that the labeling problems of graphs arise in many (but not limited to) networking and telecommunication contexts. In this paper we introduce the anti-$k$-labeling problem of graphs which we seek to minimize the similarity (or distance) of neighboring nodes.
Xiaxia Guan   +4 more
openaire   +3 more sources

Dispersed graph labellings

open access: yes, 2023
A $k$-dispersed labelling of a graph $G$ on $n$ vertices is a labelling of the vertices of $G$ by the integers $1, \dots , n$ such that $d(i,i+1) \geq k$ for $1 \leq i \leq n-1$. $DL(G)$ denotes the maximum value of $k$ such that $G$ has a $k$-dispersed labelling. In this paper, we study upper and lower bounds on $DL(G)$.
Martin, William J., Stinson, Douglas R.
openaire   +3 more sources

PMC-LABELING OF SOME CLASSES OF GRAPHS CONTAINING CYCLES

open access: yesBarekeng
Let be a graph with p vertices and q edges. We have introduced a new graph labeling method using integers and cordial-related works and investigated some graphs for this labeling technique.
R Ponraj, S Prabhu, M Sivakumar
doaj   +1 more source

Neutrosophic Divisor Cordial Labeling Graphs [PDF]

open access: yesNeutrosophic Sets and Systems
In this paper we introduced a novel concept – Neutrosophic Divisor Cordial Labeling a have proved that graphs such as wheels, helms and closed helm graph satisfy this new labeling. This paper builds upon our previous work in Neutrosophic Cordial Labeling
Tephilla Joice P, A.Rajkumar
doaj   +1 more source

On Integer Cordial Labeling of Some Families of Graphs

open access: yesRatio Mathematica, 2022
An integer cordial labeling of a graph $G(p,q)$ is an injective map $f:V\rightarrow [-\frac{p}{2}...\frac{p}{2}]^*$ or $[-\lfloor{\frac{p}{2}\rfloor}...\lfloor{\frac{p}{2}\rfloor}]$ as $p$ is even or odd, which induces an edge labeling $f^*: E ...
S Sarah Surya, Lian Mathew, Alan Thomas
doaj   +1 more source

On Square Sum Labeling of Two Families of Petersen Graphs

open access: yesJournal of Mathematics, 2022
A labeling on a graph G with n vertices and m edges is called square sum if there exists a bijection f:VG⟶0,1,2,3,…,n−1 such that the function f∗:EG⟶N defined by f∗st=fs2+ft2, for all st∈EG, is injective.
Zhiqiang Zhang   +3 more
doaj   +1 more source

Skolem labelled graphs

open access: yesDiscrete Mathematics, 1991
This paper deals with so-called \(d\)-Skolem labelled graphs and \(d\)-hooked Skolem labelled graphs. After quoting and representing main results in terms of \(d\)-Skolem labelled graphs the authors prove a lot of new theorems. Most of them give new classes of \(d\)-Skolem labelled graphs.
Mendelsohn, E., Shalaby, N.
openaire   +2 more sources

Note on edge irregular reflexive labelings of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
For a graph , an edge labeling and a vertex labeling are called total -labeling, where . The total -labeling is called an edge irregular reflexive -labeling of the graph , if for every two different edges and of , one has The minimum for which the graph ...
Martin Bača   +4 more
doaj   +1 more source

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