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A Sufficient Condition on Degree Sums of Independent Triples for Hamiltonian Cycles in 1-Tough Graphs

Bert Faβbender1
1Mathematisches Institut Universitat zu KdIn Weyertal 86-90 D-5000 K6in 41 (Lindenthal) West Germany

Abstract

We prove that if G is a 1-tough graph with n=|V(G)|13 such that
the degree sum of any three independent vertices is at least 3n142, then G is hamiltonian.