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arXiv · 1909.01094

A property of the lamplighter group

Ilaria Castellano·Ged Corob Cook·Peter H. Kropholler
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Abstract

We show that the inert subgroups of the lamplighter group fall into exactly five commensurability classes. The result is then connected with the theory of totally disconnected locally compact groups and with algebraic entropy.

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Ilaria Castellano, Ged Corob Cook, Peter H. Kropholler. 2019-09-03. A property of the lamplighter group. https://doi.org/10.1515/taa-2020-0001

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