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Prime Labeling of Special Graphs
Subject area: Science,Engineering and Technology · Area of research: Mathematics
Abstract
In this paper we investigate the prime labeling of newly constructed graphs. The symbols V(G) and E(G) will denote the vertex set and edge set of a graph G. A graph G=(V(G),E(G) )with |V(G)| vertices is said to have prime labeling if there exist a bijection mapf?V(G) ? {1,2,3,?,|V(G)|} such that for each edge e=uv in E(G),f(u) and f (v) are relatively prime. Two integers are said to be relatively prime, if their greatest common divisor(gcd) is 1. We proved that the graphs obtained by replacing every edge of a star graph K1,n by C_m is a prime graph, where n ? 1 and m?4.
Keywords
Prime labeling, Prime graphs, Greatest common divisor, Star Graphs, Cyclic Graphs
References
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[3] S. K. Vaidya, and U. M. Prajapati, Some New Results on Prime Graphs,| Open Journal of Discrete Mathematics, vol. 2, pp. 99-104, 2012.
[4] A. H. Berliner, N. Dean, J. Hook, A. Marr, A. Mbikika, and C. D. McBee, Coprime and Prime Labeling of Graphs,| Journal of Integer Sequence, Vol. 19 , no. 2, 2016.
[5] S. Ashokkumar, and S. Maragathavalli, Prime Labeling of Some Special Graphs,| ISOR Journal of Mathematics, vol. 11, no. 1, pp. 01-05, 2015.
[6] T.R.D.S.M. Thennakoon, M.D.M.C.P. Weerarathna and A.A.I. Perera, Prime Labeling of Newly Constructed Graph Using Star Graphs and Complete Bipartite Graphs,| Sumerianz Journal of Scientific Research, vol. 3, no. 2, pp. 10-17, 2020.
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How to cite this paper
@article{1702358,
author = {M. D. M. C. P. Weerarathna, T. R. D. S. M. Thennakoon, A. C. G. Perera},
title = {Prime Labeling of Special Graphs},
journal = {Iconic Research And Engineering Journals},
year = {2020},
volume = {3},
number = {12},
pages = {84-86},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1702358.pdf},
abstract = {In this paper we investigate the prime labeling of newly constructed graphs. The symbols V(G) and E(G) will denote the vertex set and edge set of a graph G. A graph G=(V(G),E(G) )with |V(G)| vertices is said to have prime labeling if there exist a bijection mapf?V(G) ? {1,2,3,?,|V(G)|} such that for each edge e=uv in E(G),f(u) and f (v) are relatively prime. Two integers are said to be relatively prime, if their greatest common divisor(gcd) is 1. We proved that the graphs obtained by replacing every edge of a star graph K1,n by C_m is a prime graph, where n ? 1 and m?4.},
keywords = {Prime labeling, Prime graphs, Greatest common divisor, Star Graphs, Cyclic Graphs},
month = {June},
}