October 13, 2020 12:00PM 

Hannah Schwartz, Postdoctoral Research Associate

Introduction by Professor Zoltán Szabó

"Homotopy, concordance, and isotopy in dimension 4"

October 13, 2020 12:30PM

Shai Evra, Instructor

Introduction by Professor Peter Sarnak

"Ramanujan complexes and Ramanujan conjectures"

October 13, 2020 1:00PM

Allen David Boozer, Instructor

Introduction by Professor Peter Ozsváth

"Knots, links, and webs in 3-manifolds"