User Stefan Friedl - MathOverflow

Stefan Friedl

Member for 14 years, 8 months
Last seen this week

University of Cologne

9 Answers

Score Activity Newest

25 votes

Accepted

Elevator pitch for the Virtual Fibering Theorem

answered Jun 15, 2012 at 6:46

11 votes

The Alexander polynomial of a slice knot, Reidemeister tosion, Whitehead group

answered May 5, 2014 at 20:27

10 votes

Accepted

Relation between the Alexander module of a link and intermediate free abelian covers

answered May 5, 2014 at 20:36

10 votes

Invariants of high-dimensional knots

answered Oct 2, 2013 at 10:15

8 votes

Judging whether a finitely presented group is a 3-manifold group?

answered Oct 25, 2012 at 22:08

7 votes

Are torus knot groups linear?

answered Oct 24, 2013 at 22:29

6 votes

How to properly define a slice knot (or a locally flat disk)?

answered Aug 17 at 8:18

5 votes

What is a subdivision of an abstract simplicial complex?

answered Apr 9, 2021 at 20:42

4 votes

How does Thurston's Orbifold Geometrization imply that knots with meridional rank 2 are 2-bridge?

answered Aug 30, 2013 at 13:31