Maximal Sets of Hamilton Cycles in Complete Multipartite Graphs III

Abby Allen Noble1, C.A. Rodger1
1Auburn University, Department of Mathematics and Statistics, 221 Parker Hall, Auburn, Alabama, 36849

Abstract

A set of \( S \) edge-disjoint Hamilton cycles in a graph \( G \) is said to be \emph{maximal} if the Hamilton cycles in \( S \) form a subgraph of \( G \) such that \( G – E(S) \) has no Hamilton cycle. The set of integers \( m \) for which a graph \( G \) contains a maximal set of \( m \) edge-disjoint Hamilton cycles has previously been determined whenever \( G \) is a complete graph, a complete bipartite graph, and in many cases when \( G \) is a complete multipartite graph. In this paper, we solve half of the remaining open cases regarding complete multipartite graphs.