Dense subgroups in the group of interval exchange transformations
Creator:Bier, Agnieszka ; Sushchanskyy, Vitaliy
Abstract:The paper concerns the characterization of the group IET of interval exchange transformations (IET). We investigate a class of rational subgroups of IET. These are subgroups consisting of IET transformations defined by partitions with rational endpoints. We propose a characterization of rational subgroups in terms of infinite supernatural numbers and prove that every such subgroup is dense in IET. We also discuss the properties of these groups.
Keywords:tasowanie przedziału ; podgrupa wymierna ; podgrupa gęsta ; liczby supernaturalne
Date: Format: Resource Identifier: Source:Algebra Discrete Mathematics 2014 vol. 17 nr 2, s. 232-247
Language: Relation:Wydział Matematyki Stosowanej. Politechnika Śląska
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