1. Department of Applied Mathematics, School of Science, Northwestern Polytechnical University, Xi'an, 710072, China
Online:2012-06-15
Published:2012-06-15
Supported by:
Supported by the National Natural Science Foundation of China (No.11171273), the Natural Science Foundation of Shaanxi Province (No.SJ08A01) and SRF for ROCS, SEM.
Cvetkovic D, Rowlinson P, Simic S. Signless Laplacian of finite graphs [J]. Linear Algebra Appl, 2007, 423: 155-171. Grone R, Merris R, Sunder V S. The Laplacian spectrum of a graph [J]. SIAM J Matrix Anal Appl, 1990, 11: 218-238. Merris R. Laplacian graph eigenvectors [J]. Linear Algebra Appl, 1998, 278: 221-236. Merris R. Multilinear Algebra [M]. New York: Gordon & Breach, 1997. Petrovic M, Radosavljevic Z. Spectrally Constrained Graphs [M]. Kragujevac: Faculty of Science, 2001. Simic S K, Stanic Z. Q-integral graphs with edge-degrees at most five [J]. Discrete Math, 2008, 308: 4625-4634. Stanic Z. There are exactly 172 connected Q-integral graphs up to 10 vertices [J]. Novi Sad J Math, 2007, 37(2): 193-205.