Results 31 to 40 of about 2,393,702 (209)

The Odd Harmonious Labeling of Layered Graphs

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2023
Graphs that have the properties of odd harmonious labeling are odd harmonious graphs. The research objective of this paper is to obtain odd harmonious labeling on layered graph C(x,y) and layered graph D(x,y).
Fery Firmansah
doaj   +1 more source

A Bucket Graph-Based Labeling Algorithm with Application to Vehicle Routing

open access: yesTransportation Science, 2020
We consider the shortest path problem with resource constraints arising as a subproblem in state-of-the-art branch-cut-and-price algorithms for vehicle routing problems.
R. Sadykov, Eduardo Uchoa, A. Pessoa
semanticscholar   +1 more source

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   +2 more sources

GPT-GNN: Generative Pre-Training of Graph Neural Networks [PDF]

open access: yesKnowledge Discovery and Data Mining, 2020
Graph neural networks (GNNs) have been demonstrated to be powerful in modeling graph-structured data. However, training GNNs requires abundant task-specific labeled data, which is often arduously expensive to obtain.
Ziniu Hu   +4 more
semanticscholar   +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

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

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

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 Lh,k-Labeling Index of Inverse Graphs Associated with Finite Cyclic Groups

open access: yesJournal of Mathematics, 2021
An Lh,k-labeling of a graph G=V,E is a function f:V⟶0,∞ such that the positive difference between labels of the neighbouring vertices is at least h and the positive difference between the vertices separated by a distance 2 is at least k.
K. Mageshwaran   +4 more
doaj   +1 more source

Fault-Tolerant Distance Labeling for Planar Graphs [PDF]

open access: yesarXiv, 2021
In fault-tolerant distance labeling we wish to assign short labels to the vertices of a graph $G$ such that from the labels of any three vertices $u,v,f$ we can infer the $u$-to-$v$ distance in the graph $G\setminus \{f\}$. We show that any directed weighted planar graph (and in fact any graph in a graph family with $O(\sqrt{n})$-size separators, such ...
arxiv  

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