Abstract We show that the edges of any ‐regular graph can be almost decomposed into paths of length roughly , giving an approximate solution to a problem of Kotzig from 1957. Along the way, we show that almost all of the vertices of a ‐regular graph can be partitioned into paths, asymptotically confirming a conjecture of Magnant and Martin from 2009.
Montgomery et al. (Fri,) studied this question.