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The faithfulness question for the Burau representation

Author: John Moody
Journal: Proc. Amer. Math. Soc. 119 (1993), 671-679
MSC: Primary 57M25; Secondary 20F36, 57M07
MathSciNet review: 1158006
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Abstract: We consider the Burau and Gassner representations of the braid groups $ {B_n}$. A sufficient condition for faithfulness, involving just a pair of arcs, is shown to be necessary as well for all but at most two values of $ n$. In the Burau case, this implies nonfaithfulness for $ n \geqslant 10$.

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Article copyright: © Copyright 1993 American Mathematical Society

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