3 papers
math.CO2012
On the Main Signless Laplacian Eigenvalues of a Graph
Hanyuan Deng, He Huang
A signless Laplacian eigenvalue of a graph is called a main signless Laplacian eigenvalue if it has an eigenvector the sum of whose entries is not equal to zero. In this paper,…
math.CO2012
Bicyclic graphs with exactly two main signless Laplacian eigenvalues
He Huang, Hanyuan Deng
A signless Laplacian eigenvalue of a graph is called a main signless Laplacian eigenvalue if it has an eigenvector the sum of whose entries is not equal to zero. In this paper,…
math-ph2003
Tricyclic graphs with exactly two main eigenvalues
He Huang, Hanyuan Deng
An eigenvalue of a graph is called a main eigenvalue if it has an eigenvector the sum of whose entries is not equal to zero. In this paper, all connected tricyclic graphs with…