Marc Kegel's user avatar
Marc Kegel's user avatar
Marc Kegel's user avatar
Marc Kegel
  • Member for 6 years, 9 months
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32 votes
Accepted

Does $M^o=N^o$ imply that $\partial M = \partial N$?

9 votes

Handlebody decomposition of 4-spheres without 3-handles

8 votes

Existence of fibered surfaces in arbitrary 4-manifolds?

6 votes

Examples of odd-dimensional manifolds that do not admit contact structure

6 votes
Accepted

Diagrams for strongly invertible knots with 10 crossings

5 votes
Accepted

Negative surgeries on negative knots

4 votes
Accepted

Minimum number of double points over all immersed disks

3 votes

Which knot complements are double branched covers?

2 votes

Surgery of $S^3$

2 votes

open book decompositions of $\Sigma\times S^1$

1 vote

How to get convinced that there are a lot of 3-manifolds?