Veering triangulations admit strict angle structures
 
 
Description: 

Agol recently introduced the concept of a veering taut triangulation of a 3-manifold, which is a taut ideal triangulation with some extra combinatorial structure. Hodgson, Rubinstein, Tillmann and I show that each veering triangulation admits a strict angle structure, which is a necessary condition for the triangulation to be geometric. Computational evidence suggests that veering triangulations are very special, but that many manifolds have them.

Date:  2011-07-26
Start Time:   14:30
Speaker:  Henry Segerman (University of Melbourne, Australia)
Institution:  -
Place:  Room 5.4
Research Groups: -Geometry
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