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On common fundamental domains
Journal article   Open access   Peer reviewed

On common fundamental domains

Dorin Ervin Dutkay, Deguang Han, Palle E.T Jorgensen and Gabriel Picioroaga
Advances in mathematics (New York. 1965), Vol.239, pp.109-127
06/01/2013
DOI: 10.1016/j.aim.2013.02.016
url
https://doi.org/10.1016/j.aim.2013.02.016View
Published (Version of record) Open Access

Abstract

We find conditions under which two measure preserving actions of two groups on the same space have a common fundamental domain. Our results apply to commuting actions with separate fundamental domains, lattices in groups of polynomial growth, and some semidirect products. We prove that two lattices of equal co-volume in a group of polynomial growth, one acting on the left, the other on the right, have a common fundamental domain.
Fundamental domain Group action Packing Polynomial growth Lattice

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