{ "id": "1806.02753", "version": "v1", "published": "2018-06-07T16:14:13.000Z", "updated": "2018-06-07T16:14:13.000Z", "title": "A remark on Liouville property of strongly transitive actions", "authors": [ "Kate Juschenko" ], "categories": [ "math.GR" ], "abstract": "Liouville property of actions of discrete groups can be reformulated in terms of existence co-F$\\o$lner sets. Since every action of amenable group is Liouville, the property can be served as an approach for proving non-amenability. The verification of this property is conceptually different than finding a non-amenable action. There are many groups that are defined by strongly transitive actions. In some cases amenability of such groups is an open problem. We define $n$-Liouville property of action to be Liouville property of point-wise action of the group on the sets of cardinality $n$. We reformulate $n$-Liouville property in terms of additive combinatorics and prove it for $n=1, 2$. The case $n\\geq 3$ remains open.", "revisions": [ { "version": "v1", "updated": "2018-06-07T16:14:13.000Z" } ], "analyses": { "keywords": [ "liouville property", "strongly transitive actions", "remains open", "existence co-f", "open problem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }