## Seminars and Colloquia by Series

Monday, December 3, 2018 - 14:00 , Location: Skiles 006 , Oleg Lazarev , Columbia , Organizer: John Etnyre
Monday, November 19, 2018 - 14:00 , Location: Skiles 006 , Livio Liechti , Paris-Jussieu , Organizer: Balazs Strenner
Monday, November 12, 2018 - 14:00 , Location: Skiles 006 , Tom Bachmann , MIT , Organizer: Kirsten Wickelgren
Monday, November 5, 2018 - 14:00 , Location: Skiles 006 , Min Hoon Kim , Korea Institute for Advanced Study , Organizer: Jennifer Hom
The still open topological 4-dimensional surgery conjecture is equivalent to the statement that all good boundary links are freely slice. In this talk, I will show that every good boundary link with a pair of derivative links on a Seifert surface satisfying a homotopically trivial plus assumption is freely slice. This subsumes all previously known methods for freely slicing good boundary links with two or more components, and provides new freely slice links. This is joint work with Jae Choon Cha and Mark Powell.
Monday, October 29, 2018 - 16:00 , Location: Boyd , TBA , TBA , Organizer: Caitlin Leverson
Monday, October 29, 2018 - 14:30 , Location: Boyd , TBA , TBA , Organizer: Caitlin Leverson
Monday, October 22, 2018 - 14:00 , Location: Skiles 006 , Luis Alexandre Pereira , Georgia Tech , Organizer: Kirsten Wickelgren
Monday, October 15, 2018 - 14:00 , Location: Skile 006 , Lev Tovstopyat-Nelip , Boston College , Organizer: John Etnyre
Monday, October 8, 2018 - 14:00 , Location: Skile 006 , None , None , Organizer: John Etnyre
Monday, October 1, 2018 - 15:30 , Location: Skiles 006 , Jason Joseph , UGA , Organizer: Caitlin Leverson