most recent 30 from http://mathoverflow.net 2013-05-25T09:42:58Z http://mathoverflow.net/feeds/user/19259 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/65211/condition-on-a-bipartite-graph-to-have-an-m-factor/80901#80901 unknown (google) 2011-11-14T15:45:57Z 2011-11-14T15:45:57Z

<p>Fedor, has this proof been published anywhere? I've been searching for an elementary proof (i.e. one not using Tutte's f-factor theorem) in print to reference. Also, do you happen to know why Ryser is given credit for the theorem? Many thanks.</p>