The nth root of a braid is unique up to conjugacy.
Gonzalez-Meneses, Juan
Geometry & Topology, Tome 7 (2003), p. 1103-1118 / Harvested from The Electronic Library of Mathematics
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Publié le : 2003-01-01
DOI : https://doi.org/10.2140/agt.2003.3.1103
EUDML-ID : urn:eudml:doc:124658 
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     title = {The },
     journal = {Geometry \& Topology},
     volume = {7},
     year = {2003},
     pages = {1103-1118},
     doi = {10.2140/agt.2003.3.1103},
     zbl = {1063.20041},
     language = {en},
     url = {http://dml.mathdoc.fr/item/02104365}
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Gonzalez-Meneses, Juan. The . Geometry & Topology, Tome 7 (2003) pp. 1103-1118. doi : 10.2140/agt.2003.3.1103. http://gdmltest.u-ga.fr/item/02104365/