USask PIMS Geometry and Physics (GAP) Seminar: Maggie Miller

  • Date: 10/13/2022
  • Time: 16:00
Maggie Miller, Stanford University

University of Saskatchewan


Obstructing isotopy with an extra dimension


In 1982, Livingston showed that several examples of Seifert surfaces that are not isotopic in the 3-sphere become isotopic when pushed into the 4-ball. This is consistent with a common intuition in topology: objects that are somehow similar should become the same when stabilized. We recently constructed families exhibiting that this is not always the case — that is, surfaces in the 3-sphere that remain non-isotopic even when pushed into the 4-ball. This is joint work with Kyle Hayden, Seungwon Kim, JungHwan Park, and Isaac Sundberg.


Alex Weekes

Steve Rayan

Curtis Wendlandt

Other Information: 

Time: 4pm Central/ 2pm Pacific


Location: Hybrid

- In person (University of Saskatchewan - THORV 124)

- Zoom: Details listed here.