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Measurable equidecompositions for group actions with an expansion property
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Grabowski, Lukasz, Máthé, András and Pikhurko, Oleg (2022) Measurable equidecompositions for group actions with an expansion property. Journal of the European Mathematical Society . doi:10.4171/JEMS/1189 (In Press)
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WRAP-Measurable-equidecompositions-group-actions-expansion-property-Pikhurko-2020.pdf - Accepted Version - Requires a PDF viewer. Download (1099Kb) | Preview |
Official URL: https://doi.org/10.4171/JEMS/1189
Abstract
Given an action of a group Γ on a measure space Ω, we provide a sufficient criterion under which two sets A,B⊆Ω are measurably equidecomposable, i.e., A can be partitioned into finitely many measurable pieces which can be rearranged using the elements of Γ to form a partition of B. In particular, we prove that every bounded measurable subset of Rn, n≥3, with non-empty interior is measurably equidecomposable to a ball via isometries. The analogous result also holds for some other spaces, such as the sphere or the hyperbolic space of dimension n≥2.
Item Type: | Journal Article | ||||||||||||||||||
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Subjects: | Q Science > QA Mathematics | ||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Euclid's Elements, Geometry, Geometry, Plane, Lie groups, Measure theory | ||||||||||||||||||
Journal or Publication Title: | Journal of the European Mathematical Society | ||||||||||||||||||
Publisher: | European Mathematical Society Publishing House | ||||||||||||||||||
ISSN: | 1435-9855 | ||||||||||||||||||
Official Date: | 27 April 2022 | ||||||||||||||||||
Dates: |
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DOI: | 10.4171/JEMS/1189 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | In Press | ||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
Copyright Holders: | © 2020 EMS | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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