Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
421194 | Discrete Applied Mathematics | 2013 | 7 Pages |
Abstract
In this paper we present an equivalent definition of Co-PI index and then determine the eigenvalues of Co-PI matrices and their Laplacians of Cartesian product graphs, including bounds on the second and third Co-PI spectral moment of a graph. The explicit formulae for the Co-PI index of Cartesian product graphs are also presented.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Computational Theory and Mathematics
Authors
Guifu Su, Liming Xiong, Lan Xu,