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1702358PublishedVol 3 · Issue 12

Prime Labeling of Special Graphs

M. D. M. C. P. Weerarathna T. R. D. S. M. Thennakoon A. C. G. Perera

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

How to cite this paper

M. D. M. C. P. Weerarathna, T. R. D. S. M. Thennakoon, A. C. G. Perera "Prime Labeling of Special Graphs" Iconic Research And Engineering Journals Volume 3 Issue 12 2020 Page 84-86
M. D. M. C. P. Weerarathna, T. R. D. S. M. Thennakoon, A. C. G. Perera "Prime Labeling of Special Graphs" Iconic Research And Engineering Journals, vol. 3, no. 12, Jun. 2020
M. D. M. C. P. Weerarathna, T. R. D. S. M. Thennakoon, A. C. G. Perera (2020). Prime Labeling of Special Graphs. Iconic Research And Engineering Journals, 3(12).
M. D. M. C. P. Weerarathna, T. R. D. S. M. Thennakoon, A. C. G. Perera "Prime Labeling of Special Graphs" Iconic Research And Engineering Journals, vol. 3, no. 12, Jun. 2020.
@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},
  }