| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1708787 | Applied Mathematics Letters | 2011 | 4 Pages |
Abstract
For a graph GG and a real number α≠0α≠0, the graph invariant sα(G)sα(G) is the sum of the ααth power of the non-zero Laplacian eigenvalues of GG. This note presents some bounds for sα(G)sα(G) in terms of the vertex degrees of GG, and a relation between sα(G)sα(G) and the first general Zagreb index, which is a useful topological index and has important applications in chemistry.
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Muhuo Liu, Bolian Liu,