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Abstract
We construct an action of the Thompson group F on a compact space built from pairs of infinite, binary rooted trees. The action arises as an F-equivariant compactification of the action of F by translations on one of its homogeneous spaces, F/H_2, corresponding to a certain subgroup H_2 of F. The representation of F on the Hilbert space l^2(F/H_2) is faithful on the complex group algebra C[F].
Original language | English |
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Journal | Bulletin of the Belgian Mathematical Society - Simon Stevin |
Volume | 29 |
Issue number | 3 |
Pages (from-to) | 359-370 |
ISSN | 1370-1444 |
DOIs | |
Publication status | Published - Dec 2022 |
Keywords
- Thompson's group F
- infinite trees
- equivariant compactification
- Thompson’s group F
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- 1 Finished
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Independent Research Fund Denmark - Automorphisms and Invariants of Operator Algebras
Kyed, D. (Co-PI), Szymanski, W. (PI), Kaad, J. (Co-PI), Eilers, S. (Co-PI), Törnquist, A. (Co-PI), Nest, R. (Co-PI), Thomsen, K. (Co-PI) & Thorbjørnsen, S. (Co-PI)
01/09/2017 → 01/09/2024
Project: Research Councils