Title of article
Unicyclic graphs with exactly two main eigenvalues Original Research Article
Author/Authors
Yaoping Hou، نويسنده , , Feng Tian، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
5
From page
1143
To page
1147
Abstract
An eigenvalue of a graph GG 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.
Keywords
2-walk linear graphs , Harmonic graphs , Main eigenvalues , Unicyclic graphs , Spectra of a graph
Journal title
Applied Mathematics Letters
Serial Year
2006
Journal title
Applied Mathematics Letters
Record number
898253
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