Liu, Jia-Bao; Pan, Xiang-Feng - In: Physica A: Statistical Mechanics and its Applications 422 (2015) C, pp. 193-202
The energy of a graph G arising in chemical physics, denoted by E(G), is defined as the sum of the absolute values of the eigenvalues of G. As an analogue to E(G), the incidence energy IE(G), defined as the sum of the singular values of the incidence matrix of G, is a much studied quantity with...