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Answer a question more than 60 days later with score of 5 or more. This badge can be awarded multiple times.

Peter Teichner

1,64619 silver badges15 bronze badges

earned this badge 8 times.

What would the slice-ribbon conjecture imply?

Awarded Aug 25, 2011 at 10:50

Explanation for the Chern character

Awarded Aug 21, 2011 at 10:05

Failure of smoothing theory for topological 4-manifolds

Awarded Jan 1, 2011 at 4:50

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

Awarded Jun 19, 2010 at 12:05

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

Awarded Mar 29, 2010 at 1:05

Natural examples of finite dimensional spaces with interesting 2-type

Awarded Mar 22, 2010 at 15:20

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

Awarded Mar 18, 2010 at 17:20

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

Awarded Mar 14, 2010 at 11:50

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