Morse 2-functions and trisections of 4-manifolds
Prof. R. Kirby (University of California, Berkeley)
Tuesday 20th November, 2012 16:00-17:00 203
Abstract
In joint work with David Gay, we show existence and uniqueness of Morse 2-functions (also known as broken Lefschetz fibrations), and then existence and uniqueness (up to stabilization) of trisections of 4-manifolds (analogous to Heegaard splittings of 3-manifolds).
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