机译:Towards a definition of almost-equienergetic graphs
Faculty of Science, University of Kragujevac, P. O. Box 60, 34000 Kragujevac, Serbia;
Chemistry Department, Faculty of Science, King Abdulaziz University, Jidda 21589, Saudi Arabia;
Total π-electron energy; Energy of graph; Equienergetic graphs; Almost-equienergetic graphs;