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Main eigenvalues of a graph |
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| Authors: | Yasuo Teranishi |
| Affiliation: | 1. Graduate School of Mathematics , Nagoya University , Nagoya, 464-8602, Japan teranish@math.nagoya-u.ac.jp |
| Abstract: | An eigenvalue of a graph is said to be a main eigenvalue if it has an eigenvector not orthogonal to the main vector j=(1,1,…,1). In this paper we shall study some properties of main eigenvalues of a graph. |
| Keywords: | Main eigenvalue Spectra Quotient graph |