GTC 2019: Speaker: Jennifer Schultens Title: Surface complexes of Seifert fibered spaces Read more about GTC 2019: Speaker: Jennifer Schultens
GTC 2019: Speaker: Tao Li Title: Genus 2 Heegaard splittings and Dehn surgery on tunnel number one knots Abstract: We generalize a theorem of Homma, Ochiai, and Takahashi, and discuss its relation with the Berge conjecture. Read more about GTC 2019: Speaker: Tao Li
GTC 2019: Speaker: Steven Frankel Title: TBA Abstract: TBA Read more about GTC 2019: Speaker: Steven Frankel
GTC 2019: Speaker: Cameron Gordon Title: ADE links and cyclic branched covers Abstract: The Dynkin diagrams of types A,D and E arise in many classification problems in mathematics. We conjecture a modest addition to this list: the fibered links that induce the standard tight contact structure on S3 and have some cyclic branched cover an L-space. We will discuss progress towards a proof of this conjecture. This is joint work with Michel Boileau and Steve Boyer. Read more about GTC 2019: Speaker: Cameron Gordon
GTC 2019: Speaker: Steve Boyer Title : Cyclic branched covers and the L-space conjecture Abstract : We survey what is known about the L-space conjecture for manifolds obtained as cyclic branched covers of links in the 3-sphere and report, in particular, on joint work with Michel Boileau and Cameron Gordon and with Ying Hu. Read more about GTC 2019: Speaker: Steve Boyer
GTC 2019: Speaker: Ying Hu Title: Euler class and taut foliations on surgered 3-manifolds Abstract. This talk is motivated by the conjecture: the fundamental group of a QHS is left-orderable if and only if it admits a co-orientable taut foliation. It is known that if the Euler class of the taut foliation vanishes, then the fundamental group is left-orderable. In this talk, we will investigate the Euler class of co-orientable taut foliations on 3- manifolds which are obtained by Dehn surgery along a null-homologous knot. Read more about GTC 2019: Speaker: Ying Hu
GTC 2019: Speaker: Maggy Tomova Title: Distortion and the Bridge Distance of Knots Read more about GTC 2019: Speaker: Maggy Tomova
GTC 2019: Speaker Michael Landry Title: Homology directions and veering triangulations Abstract: The cone over a fibered face of a hyperbolic 3-manifold has a nice characterization as the dual of the so-called cone of homology directions of a certain pseudo-Anosov flow. We give a new characterization of this cone of homology directions in terms of Agols veering triangulations. Read more about GTC 2019: Speaker Michael Landry
GTC 2019: Speaker: Liam Wilson Title: Invariants of tangles from the Fukaya category of the 4-punctured sphere Abstract: I will discuss a reinterpretation of Bar-Natans description of Khovanov homology in terms of immersed curves in the 4-punctured sphere. This point of view has some interesting algebraic consequences; the talk will focus on examples. This is joint work with Artem Kotelskiy and Claudius Zibrowius. Read more about GTC 2019: Speaker: Liam Wilson
GTC: 2019 : Speaker: Boyu Zhang Title: Taut foliations and Seiberg-Witten invariants Read more about GTC: 2019 : Speaker: Boyu Zhang