Probabilistically nilpotent groups
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Abstract:
We show that, for a finitely generated residually finite group $\Gamma$, the word $[x_1, \ldots , x_k]$ is a probabilistic identity of $\Gamma$ if and only if $\Gamma$ has a finite index subgroup which is nilpotent of class less than $k$.
Related results, generalizations and problems are also discussed.
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Additional Information
- Aner Shalev
- Affiliation: Einstein Institute of Mathematics, Hebrew University , Givat Ram, Jerusalem 91904, Israel
- MR Author ID: 228986
- ORCID: 0000-0001-9428-2958
- Email: shalev@math.huji.ac.il
- Received by editor(s): June 8, 2017
- Received by editor(s) in revised form: June 20, 2017
- Published electronically: December 7, 2017
- Additional Notes: The author was partially supported by ERC advanced grant 247034, ISF grant 1117/13 and the Vinik Chair of mathematics which he holds.
- Communicated by: Pham Huu Tiep
- © Copyright 2017 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 146 (2018), 1529-1536
- MSC (2010): Primary 20E26; Secondary 20P05
- DOI: https://doi.org/10.1090/proc/13867
- MathSciNet review: 3754339