Journals / Hacettepe Journal of Mathematics and Statistics / 2013 / Cilt: 42 - Sayı: 5

AN UPPER BOUND ON THE SPECTRAL RADIUS OF WEIGHTED GRAPHS

Pages
517–524
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Wealso characterize graphs for which the bound is attained.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:We consider weighted graphs, where the edge weights are positive definite matrices.
📊
Key Findings & Data:The eigenvalues of a graph are the eigenvalues of itsadjacency matrix.
💡
Conclusion & Impact:Wealso characterize graphs for which the bound is attained.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Weighted graph · Adjacency matrix · Spectral radius

Abstract

We consider weighted graphs, where the edge weights are positive definite matrices. The eigenvalues of a graph are the eigenvalues of itsadjacency matrix. We obtain another upper bound which is sharp onthe spectral radius of the adjacency matrix and compare with someknown upper bounds with the help of some examples of graphs. Wealso characterize graphs for which the bound is attained.

🔖

Cite This Article

OZARSLAN, S., SORGUN, S., BUYUKKOSE, S. (2022). AN UPPER BOUND ON THE SPECTRAL RADIUS OF WEIGHTED GRAPHS. Hacettepe Journal of Mathematics and Statistics, Cilt: 42 - Sayı: 5, 517–524. https://ajindex.com/articles/530441

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (9)

  1. Berman, A., Zhang,X.D. On the spectral radius of graphs with cut vertices, J. Combin. Theory Ser. B 83, 233-240, 2001.
  2. Brualdi, R.A., Hoffman, A.J. On the spectral radius of a (0,1)-matrix, Linear Algebra Appl. 65, 133-146, 1985.
  3. Cvetkovic, D., Rowlinson, P. The largest eigenvalue of a graph:a survey, Linear Multilinear Algebra 28, 3-33, 1990.
  4. Das, K.C., Kumar, P. Bounds on the greatest eigenvalue of graphs, Indian J. Pure Appl. Math. 123, 65-74, 1993.
  5. Das, K.C., Kumar, P. Some new bounds on the spectral radius of graphs, Discrete Mathematics 281, 149-161, 2004.
  6. Das, K.C., Bapat, R.B. A sharp upper bound on the spectral radius of weighted graphs, Discrete Math. 308 (15), 3180-3186, 2008.
  7. Hong, Y. Bounds of eigenvalues of graphs, Discrete Math. 123, 65-74, 1993.
  8. Stanley, R.P. A bound on the spectral radius of graphs with e edges, Lin. Alg. Appl. 67, 267-269, 1987. B¨ uy¨ ukk¨ ose, S., Sorgun, S. A bound on the Spectral radius of a weighted graph, G. U. Journal Of Science 22, 263-266, 2009.
  9. Horn, R.A., Johnson, C.R. Matrix Analysis, Cambridge University Press, New York, 1985.