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earned this badge 38 times.
Symmetric functions in type B and type D
Awarded Nov 2, 2022 at 14:34
Mapping Out(F_n) to the mapping class group
Awarded Jun 2, 2022 at 5:32
Commutativity of the Chow ring in positive characteristic
Awarded Mar 3, 2022 at 10:17
Eilenberg-Steenrod axioms of sheaf cohomology
Awarded Jan 3, 2022 at 15:11
Tensor products of $\infty$-algebras over operads
Awarded Dec 20, 2021 at 23:32
On functoriality of the Leray spectral sequence
Awarded Jun 24, 2021 at 18:01
Has anyone seen this construction of dg algebras?
Awarded Apr 20, 2020 at 7:30
On the coalgebraic homotopy transfer theorem
Awarded Jan 27, 2020 at 17:10
When can cohomology be calculated on the coarse moduli space?
Awarded Sep 30, 2019 at 20:00
Splitting the injection that you get from the Poincaré-Birkhoff-Witt theorem
Awarded Nov 11, 2018 at 13:15
Defining Massey products as transgressions
Awarded Jan 26, 2018 at 19:58
Is this an $E_\infty$-algebra?
Awarded Dec 14, 2017 at 18:43
Cohomology of a blow-up of a real algebraic variety
Awarded Nov 2, 2017 at 15:26
A frustrating cohomology class on the moduli of abelian surfaces
Awarded Oct 26, 2017 at 5:22
Peter-Weyl vs. Schur-Weyl theorem
Awarded Apr 19, 2017 at 2:31
Who streamlined Kontsevich's count of rational curves?
Awarded Sep 28, 2016 at 0:39
Koszulness of the cohomology ring of moduli of stable genus zero curves
Awarded Sep 11, 2015 at 23:14
Mixed Hodge structure on configuration spaces
Awarded May 12, 2015 at 2:51
A cdga for compactly supported cohomology (à la Sullivan's algebra of polynomial forms)
Awarded Feb 12, 2015 at 0:29
What's the status of Arthur's announced classification for GSp(4)?
Awarded Dec 5, 2014 at 16:39
What's the dimension of the space of CM cusp forms?
Awarded Nov 8, 2014 at 21:53
Which mapping class group representations come from algebraic geometry?
Awarded Nov 4, 2014 at 7:50
Holomorphic cusp forms and cohomology of GL(2,Z)
Awarded Oct 30, 2014 at 20:55
What makes the Cartier operator "tick"?
Awarded Aug 4, 2014 at 21:50
Maps to projective space == line bundles; what do maps to weighted projective space correspond to?
Awarded Jul 12, 2014 at 23:55
What (if anything) unifies stable homotopy theory and Grothendieck's six functors formalism?
Awarded Jun 8, 2014 at 8:44
Can both G and BG be finite CW complexes?
Awarded Oct 3, 2013 at 13:10
Grothendieck's letter to Faltings: On the yoga of motives and the degeneration of Leray spectral sequence
Awarded Aug 13, 2013 at 15:06
The fibers of M_{g,n} \to M_g and the Fulton-MacPherson compactification
Awarded Aug 17, 2012 at 7:35
Is the Grothendieck ring of varieties reduced?
Awarded Jun 12, 2012 at 15:20
What's up with Wick's theorem?
Awarded Mar 28, 2012 at 13:20
Is there Harer stability for moduli of curves with level structure?
Awarded Feb 2, 2012 at 23:05
What do dessins tell us about the absolute Galois group?
Awarded Jan 25, 2012 at 17:20
Why do H_4 and M_4 have the same virtual Euler characteristic?
Awarded Jun 4, 2011 at 20:05
Reference for representation theory of SL_2(Z/n)
Awarded Jan 31, 2011 at 6:20
What is a self-dual category?
Awarded Jan 18, 2011 at 17:35
Is $M_g$ finitely covered by a scheme over the integers?
Awarded Nov 26, 2010 at 8:50
Homotopy theory of topological stacks/orbifolds
Awarded Sep 5, 2010 at 14:20

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