Examples of non-trivial roots of unity at ideal points of hyperbolic 3-manifolds

Nathan M. Dunfield

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arxiv math/9801064 v2 pith:SWQJDWBS submitted 1998-01-13 math.GT

Examples of non-trivial roots of unity at ideal points of hyperbolic 3-manifolds

Nathan M. Dunfield This is my paper

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This paper gives examples of hyperbolic 3-manifolds whose SL(2,C) character varieties have ideal points whose associated roots of unity are not 1 or -1. This answers a question of Cooper, Culler, Gillet, Long, and Shalen as to whether roots of unity other than 1 and -1 occur.

Examples of non-trivial roots of unity at ideal points of hyperbolic 3-manifolds

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