Université de Sherbrooke
September 30, 2016 from 16:00 to 18:00 (Montreal/EST time) On location
Various auxiliary structures arise naturally in lowdimensions. I will discuss three of these: leftorders on the fundamental group, taut foliations on threemanifolds, and nontrivial Floer homological invariants. Perhaps surprisingly, for (closed, connected, orientable, irreducible) threemanifolds, it has been conjectured that the existence of any one of these structures implies the others. I will describe what is currently known about this conjectural relationship, as well as some of the machinery — particularly in Heegaard Floer theory — that has been developed in pursuit of the conjecture.
AddressUQAM, Pavillon Président-Kennedy, 201, ave du Président-Kennedy, room PK5115