{ "id": "1607.07426", "version": "v1", "published": "2016-07-25T19:45:45.000Z", "updated": "2016-07-25T19:45:45.000Z", "title": "Symmetric Graphs have symmetric Matchings", "authors": [ "Jan Fricke" ], "categories": [ "math.GR" ], "abstract": "Assume that there is a free group action of automorphisms on a bipartite graph. If there is a perfect matching on the factor graph, then obviously there is a perfect matching on the graph. Surprisingly, the reversed is also true for amenable groups: if there is a perfect matching on the graph, there is also a perfect matching on the factor graph, i. e. a group invariant (\"symmetric\") perfect matching on the graph.", "revisions": [ { "version": "v1", "updated": "2016-07-25T19:45:45.000Z" } ], "analyses": { "keywords": [ "symmetric graphs", "symmetric matchings", "perfect matching", "factor graph", "free group action" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }