H. Ren
Department of Mathematics, East China Normal University, Shanghai, 200241, P.R. China| Shanghai Key Laboratory of PMMP, Shanghai, 200241, P.R. China.
[ 1 ] - The lower bound for the number of 1-factors in generalized Petersen graphs
In this paper, we investigate the number of 1-factors of a generalized Petersen graph $P(N,k)$ and get a lower bound for the number of 1-factors of $P(N,k)$ as $k$ is odd, which shows that the number of 1-factors of $P(N,k)$ is exponential in this case and confirms a conjecture due to Lovász and Plummer (Ann. New York Acad. Sci. 576(2006), no. 1, 389-398).