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13

APPML
2006

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Unicyclic graphs with exactly two main eigenvalues

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Unicyclic graphs with exactly two main eigenvalues

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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

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Added	10 Dec 2010
Updated	10 Dec 2010
Type	Journal
Year	2006
Where	APPML
Authors	Yaoping Hou, Feng Tian

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