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Your search keyword '"Fan, Yi-Zheng"' showing total 2 results
Start Over Author "Fan, Yi-Zheng" Journal graphs & combinatorics
2 results on '"Fan, Yi-Zheng"'

1. The Signless Laplacian or Adjacency Spectral Radius of Bicyclic Graphs with Given Number of Cut Edges.

Author

Hong, Zhen-Mu and Fan, Yi-Zheng

Subjects
*GRAPH theory, *SPECTRAL theory, *LAPLACIAN matrices, *PATHS & cycles in graph theory, *NUMBER theory
Abstract

Let $$\fancyscript{B}(n,r)$$ be the set of all bicyclic graphs with $$n$$ vertices and $$r$$ cut edges. In this paper we determine the unique graph with maximal adjacency spectral radius or signless Laplacian spectral radius among all graphs in $$\fancyscript{B}(n,r)$$ . [ABSTRACT FROM AUTHOR]

Published
2015
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2. The Least Eigenvalue of Graphs with Cut Edges.

Author

Wang, Yi and Fan, Yi-Zheng

Subjects
*EIGENVALUES, *GRAPH theory, *NUMBER theory, *LEAST squares, *MATRICES (Mathematics), *MATHEMATICAL analysis
Abstract

In this paper we characterize the unique graph whose least eigenvalue attains the minimum among all connected graphs of fixed order and given number of cut edges. [ABSTRACT FROM AUTHOR]

Published
2012
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