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Unicyclic graphs with exactly two main eigenvalues

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Unicyclic graphs with exactly two main eigenvalues
An eigenvalue of a graph G is called a main eigenvalue if it has an eigenvector the sum of whose entries is not equal to zero, and it is well known that a graph has exactly one main eigenvalue if and only if it is regular. In this work, all connected unicyclic graphs with exactly two main eigenvalues are determined. c 2006 Elsevier Ltd. All rights reserved.
Yaoping Hou, Feng Tian
Added 10 Dec 2010
Updated 10 Dec 2010
Type Journal
Year 2006
Where APPML
Authors Yaoping Hou, Feng Tian
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