Author/Authors :
Fan، نويسنده , , Yi-Zheng and Gong، نويسنده , , Shi-Cai and Zhou، نويسنده , , Jun and Tan، نويسنده , , Yingying and Wang، نويسنده , , Yi، نويسنده ,
Abstract :
Let G be a nonsingular connected mixed graph. We determine the mixed graphs G on at least seven vertices with exactly two Laplacian eigenvalues greater than 2. In addition, all mixed graphs G with exactly one Laplacian eigenvalue greater than 2 are also characterized.