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The automorphism groups of the profinite braid groups
- American Journal of Mathematics
- Johns Hopkins University Press
- Volume 144, Number 5, October 2022
- pp. 1159-1176
- 10.1353/ajm.2022.0034
- Article
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abstract:
In this paper we determine the automorphism groups of the profinite braid groups with four or more strings in terms of the profinite Grothendieck-Teichm\"uller group.