Journals / Hacettepe Journal of Mathematics and Statistics / 2011 / Cilt: 40 - Sayı: 1

On the Wiener index of unicyclic graphs

Pages
63–68
Publication Date
2022-10-18
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

In this paper, we characterize the connected unicyclic graph with minimum Wiener indices among all connected unicyclic graphs of order n and girth g with k pendent vertices.

📌 3 Key Takeaways

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Objective & Hypothesis:The Wiener index of a graph G is defined as W(G) = $Sigma _{u,v} d_G (u, v),$ where $ d_G (u, v)$ is the distance between u and v in G, and the sum goes over all pairs of vertices.
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Key Findings & Data:The Wiener index of a graph G is defined as W(G) = $Sigma _{u,v} d_G (u, v),$ where $ d_G (u, v)$ is the distance between u and v in G, and the sum goes over all pairs of vertices.
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Conclusion & Impact:In this paper, we characterize the connected unicyclic graph with minimum Wiener indices among all connected unicyclic graphs of order n and girth g with k pendent vertices.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The Wiener index of a graph G is defined as W(G) = $Sigma _{u,v} d_G (u, v),$ where $ d_G (u, v)$ is the distance between u and v in G, and the sum goes over all pairs of vertices. In this paper, we characterize the connected unicyclic graph with minimum Wiener indices among all connected unicyclic graphs of order n and girth g with k pendent vertices.

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Cite This Article

HONG, Y., LIU, H., WU, X. (2022). On the Wiener index of unicyclic graphs. Hacettepe Journal of Mathematics and Statistics, Cilt: 40 - Sayı: 1, 63–68. https://ajindex.com/articles/530555

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References (12)

  1. An, X. and Wu, B. The Wiener index of the kth power of a graph, Appl. Math. Lett. 21, 436–440, 2008
  2. Balakrishnan, Sridharanb, R.N. and Viswanathan, K. Iyer, Wiener index of graphs with more than one cut-vertex, Appl. Math. Lett. 21, 922–927, 2008
  3. Bondy, J.A. and Murty, U. S.R. Graph Theory with Applications (Macmillan, London, 1976)
  4. Deng, H. The trees on n $geq$ 9 vertices with the first to seventeenth greatest Wiener indices are chemical trees, MATCH Commun. Math. Comput. Chem. 57, 393–402, 2007
  5. Dobrynin, A., Entringer, R. and Gutman, I. Wiener index of trees: theory and applications, Acta Appl. Math. 66, 211–249, 2001
  6. Dobrynin, A., Gutman, I., Klavzar, S. and Zigert, P. Wiener index of hexagonal systems, Acta Appl. Math. 72, 247–294, 2002
  7. Entringer, R.C. Distance in graphs: Trees, J. Comb. Math. Comb. Comput. 24 (1997) 65-84
  8. Entringer, R.C., Jackson, D.E. and Snyder, D.A. Distance in graphs, Czech. Math. J. 26, 283–296, 1976
  9. Liu, H.Q. and Lu, M. A unified approach to extremal cacti for different indices, MATCH Commun. Math. Comput. Chem. 58, 183–194, 2007
  10. Liu, H.Q. and Pan, X.F. Minimal Wiener index of trees with fixed diameter, MATCH Commun. Math. Comput. Chem. 60, 85–94, 2008
  11. Tang, Z. and Deng, H. The (n, n)-graphs with the first three extremal Wiener index, J. Math. Chem. 43, 60–74, 2008
  12. Wiener, H. Structural determination of paraffin boiling point, J. Amer. Chem. Soc. 69, 17–20, 1947.