The Asymptotic Number of Eulerian Oriented Graphs with Multiple Edges

Xiaoji Wang 1
1School of Mathematics, University of New South Wales, PO Boz 1, Kensington, NSW 2033, Australia

Abstract

We estimate the number of labelled loop-free Eulerian oriented graphs with multiple edges with \(n\) vertices by using an \(n\)-dimensional Cauchy integral. An asymptotic formula is obtained for the case where the multiplicity of each edge is \(O(\log n)\).