Peter Teichner's user avatar
Peter Teichner's user avatar
Peter Teichner's user avatar
Peter Teichner
  • Member for 12 years, 6 months
22 votes
Accepted

A question on classification of almost complex structures on $4$-manifolds

21 votes
Accepted

What would the slice-ribbon conjecture imply?

21 votes
Accepted

Complex orientations on homotopy

20 votes

Failure of smoothing theory for topological 4-manifolds

18 votes

Explanation for the Chern character

13 votes
Accepted

Natural examples of finite dimensional spaces with interesting 2-type

12 votes
Accepted

slice-ribbon for links (surely it's wrong)

10 votes

How are these algebraic and geometric notions of homotopy of maps between manifolds related?

10 votes
Accepted

A problem/conjecture related to 4-manifolds that deserves a name. What name does it deserve?

7 votes
Accepted

Is the following map from Z(G) x H^3(G, C*) --> H^2(G, C*) ever nontrivial?