User Stefan Friedl - MathOverflow Meta

Stefan Friedl

Member for 13 years, 1 month
Last seen more than 9 years ago

University of Cologne

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24

Elevator pitch for the Virtual Fibering Theorem

20

Topological embeddings of real projective space in euclidean space

19

Are the Morse inequalities sharp for 5-manifolds

19

are there high-dimensional knots with non-trivial normal bundle?

13

Finite index subgroups of free groups and torsion-free amenable quotients of free groups