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Thin position for 3-manifolds

Student-Run Geometry/Topology Seminar

Speaker: George Mossessian, UC Davis
Location: 3106 MSB
Start time: Wed, Feb 13 2013, 4:10PM

This talk will define thin position for 3-manifolds, and examine its relation to Heegaard genus and essential surfaces in the manifold. In particular, this leads to a very nice proof of a result of Casson-Gordon which was presented in a talk last quarter. If time allows, we may also discuss thin position for knots, and some newer ideas of "axiomatic thin position".