The purpose of this paper is to introduce and investigate the symmetric division deg energy SDDE(G) of a graph. We establish upper and lower bounds for SDDE (G). Also the symmetric division deg energy for certain graphs with one edge deleted are calculated.
Motivated by the inverse sum status index, we introduce the inverse sum status matrix ISS={■((σ_u σ_v)/((σ_u+σ_v ) ) if u_i~v_j,@0 otherwise)┤ Thus we also obtained the results for well known graphs. Keywords: Inverse sum status energy, Inverse Sum Indeg matrix. 2010 AMS Subject Classification: 05C50.
The partition energy of a graph was introduced by Sampathkumar et al. [12]. Motivated by this, we introduce the concept of minimum equitable dominating partition energy of a graph, E E p (G) and compute the minimum equitable dominating partition energy E E p (G) of few families of graphs. Also, we establish the bounds for minimum equitable dominating partition energy.
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