A graph G of order n is called hyperenergetic if E(G) > 2n - 2, whereE(G) is the energy of G. In this paper it is shown that Kneser graph K_(n:r) ishyperenergetic for any naturals n and r ≥ 2 with n ≥ 2r + 1. Also we provethat for r ≥ 2, the complement of Kneser graph, E(K_(n:r)-bar),is hyperenergetic.
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