عنوان On some lower bounds for graph energy نوع پژوهش مقاله ارائهشده کلیدواژهها Adjacency matrix, Eigenvalue of graphs, Graph energy. چکیده The energy of a graph G, denoted by E(G), is defined as the sum of absolute values of all eigenvalues of G. There are many lower and upper bounds for the energy of graphs in terms of graph parameters. Here, we present some of them. پژوهشگران محمد علی حسین زاده (نفر اول)