The energy of q-Kneser graphs and attenuated q-Kneser graphs

摘要

The energy of a graph is the sum of absolute values of its eigenvalues. In this paper, we obtain a simple expression for the energy of q-Kneser graphs. Moreover, we compute the energy of attenuated q-Kneser graphs, which are a family of subgraphs of q-Kneser graphs.