Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/11826
Title: On energy and Laplacian energy of bipartite graphs
Authors: das, kinkar
Mojallal, S. Ahmad
Gutman, Ivan
Issue Date: 2016
Abstract: © 2015 Elsevier Inc. Let G be a bipartite graph of order n with m edges. The energy E(G) of G is the sum of the absolute values of the eigenvalues of the adjacency matrix A. In 1974, one of the present authors established lower and upper bounds for E(G) in terms of n, m, and detA. Now, more than 40 years later, we correct some details of this result and determine the extremal graphs. In addition, an upper bound on the Laplacian energy of bipartite graphs in terms of n, m, and the first Zagreb index is obtained, and the extremal graphs characterized.
URI: https://scidar.kg.ac.rs/handle/123456789/11826
Type: article
DOI: 10.1016/j.amc.2015.10.047
ISSN: 0096-3003
SCOPUS: 2-s2.0-84946607028
Appears in Collections:Faculty of Science, Kragujevac

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