Order unicyclic graphs according to spectral radius of unoriented laplacian matrix

• Autorzy: Yi-Zheng Fan , Song Wu
• Języki publikacji: EN

Abstrakty

EN

The spectral radius of a graph is defined by that of its unoriented Laplacian matrix. In this paper, we determine the unicyclic graphs respectively with the third and the fourth largest spectral radius among all unicyclic graphs of given order.

Słowa kluczowe

EN

unicyclic graph; Laplacian matrix; spectral radius

Kategorie tematyczne

• 05C50: Graphs and linear algebra (matrices, eigenvalues, etc.)
• 15A18: Eigenvalues, singular values, and eigenvectors

• Wydawca: De Gruyter Open
• Czasopismo: Discussiones Mathematicae Graph Theory
• Rocznik: 2008
• Tom: 28
• Numer: 3
• Strony: 487-499

Daty

wydano

2008

otrzymano

2007-12-18

poprawiono

2008-05-13

zaakceptowano

2008-05-13

Twórcy

autor

Yi-Zheng Fan

• Key Laboratory of Intelligent Computing & Signal Processing, Ministry of Education of the People's Republic of China, Anhui University, Hefei 230039, P.R. China

autor

Song Wu

• School of Mathematics and Computation Sciences, Anhui University, Hefei, Anhui 230039, P.R. China

Bibliografia

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Identyfikatory

DOI

10.7151/dmgt.1422