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Toughness, degrees and 2-factors
Authors:Ralph J. Faudree  Ronald J. Gould  Michael S. Jacobson  Linda Lesniak
Affiliation:a University of Memphis, Memphis, TN 38152, USA
b Department of Mathematics and Computer Science, Emory University, Atlanta, GA 30322, USA
c Department of Mathematics, University of Colorado at Denver, Denver, CO 80217, USA
d Department of Mathematics, Drew University, Madison, NJ 07940, USA
e Department of Computer Science and Information and Science, Nihon University, Tokyo 156, Japan
Abstract:In this paper we generalize a Theorem of Jung which shows that 1-tough graphs with View the MathML source are hamiltonian. Our generalization shows that these graphs contain a wide variety of 2-factors. In fact, these graphs contain not only 2-factors having just one cycle (the hamiltonian case) but 2-factors with k cycles, for any k such that View the MathML source.
Keywords:05C38   05C45
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