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Explicit angle structures for veering triangulations

Futer, D
; 
Guéritaud, F
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Journal Article
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2013-02-14
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math.GT
 math.GT
 57M50, 57R05
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http://hdl.handle.net/20.500.12613/5968
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1012.5134v2.pdf
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10.2140/agt.2013.13.205
Abstract
Agol recently introduced the notion of a veering triangulation, and showed that such triangulations naturally arise as layered triangulations of fibered hyperbolic 3-manifolds. We prove, by a constructive argument, that every veering triangulation admits positive angle structures, recovering a result of Hodgson, Rubinstein, Segerman, and Tillmann. Our construction leads to explicit lower bounds on the smallest angle in this positive angle structure, and to information about angled holonomy of the boundary tori.
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Mathematical Sciences Publishers
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Algebraic and Geometric Topology
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