This book is about graph energy. The authors have included many of the important results
on graph energy, such as the complete solution to the conjecture on maximal energy of …

The energy E (G) of a graph G is the sum of absolute values of the eigenvalues of the
adjacency matrix of G. This spectral quantitywas introduced in 1978 by Ivan Gutman, but its …

The energy of a graph is the sum of the absolute values of its eigenvalues. Two graphs are
said to be equienergetic if their energies are equal. We show how infinitely many pairs of …

The energy of a graph G is the sum of the absolute values of its eigenvalues. Two non-
isomorphic graphs of same order are said to be equienergetic if their energies are equal. In …

The energy of a graph G is the sum of the absolute values of its eigenvalues. Two graphs
are said to be equienergetic if their energies are equal. In this paper we show that if G is a …

Flavonoids are known for its mechanism of antioxidant property which can prevent DNA
damage. These natural products' anticancer and antiviral properties are linked to their …

Let G be a graph on n vertices, and let λ1, λ2,…, λn be its eigenvalues. The Estrada index of
G is a recently introduced molecular structure descriptor, defined as [Formula: see text] …

In 1971 McClelland obtained lower and upper bounds for the total π-electron energy. We
now formulate the generalized version of these bounds, applicable to the energy-like …

A structure-descriptor EE, recently proposed by Estrada, is examined. If λ1, λ2,..., λn are the
eigenvalues of the molecular graph, then. In the case of benzenoid hydrocarbons with n …

In an earlier work [Gutman et al., Chem. Phys. Lett. 297, 428 (1998)] the average energy (E)
of graphs with n vertices and m edges was examined, in particular its dependence on n and …