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earned this badge 35 times.
Derivations of C(X)? or Why Must Supermanifolds be Smooth?
Awarded Oct 9, 2023 at 9:27
How many model categories have the same weak equivalences?
Awarded Jul 30, 2023 at 9:20
Categorifying the Reals via von Neumann Algebras?
Awarded Jun 30, 2023 at 18:49
Why are quasitopological spaces needed in sheaf theoretic approaches to the h-principle?
Awarded May 30, 2023 at 4:48
Why does the internal singular simplicial space realize to the same thing as the discrete singular simplicial set?
Awarded Mar 30, 2022 at 20:48
Failure of Fin. Presented and Fin. Generated Modules to be Abelian Categories?
Awarded Mar 15, 2022 at 16:16
The cohomology plus what characterizes the rational homotopy type?
Awarded Jun 9, 2021 at 11:35
When is the projective model structure cartesian? When is the internal hom invariant?
Awarded Mar 26, 2021 at 8:57
Which stable homotopy groups are represented by parallelizable manifolds?
Awarded Mar 5, 2021 at 10:09
Is the geometric realization of a level-wise weak equivalence a weak equivalence?
Awarded Apr 4, 2020 at 15:10
Finding the octonionic analog of the K3 surface, via (almost) hyperkahler geometry?
Awarded Feb 1, 2020 at 1:20
Integral cohomology ring of K(Z,3)
Awarded Oct 19, 2019 at 18:55
Simplicial model of Hopf map?
Awarded Dec 15, 2018 at 17:15
Why does the singular simplicial space geometrically realize to the original space?
Awarded Dec 7, 2018 at 15:30
Segal's 1999 Stanford lecture notes on TQFT, where to find them?
Awarded Aug 3, 2018 at 10:05
Is the counit of geometric realization a Serre fibration?
Awarded Feb 26, 2018 at 17:16
Are the mapping class groups of manifolds finitely presentable?
Awarded Feb 22, 2018 at 8:45
A Model Category of Segal Spaces?
Awarded Apr 20, 2017 at 10:38
An elementary question about adjunctions between presheaf categories preserving pullbacks.
Awarded Jan 22, 2017 at 0:28
Is there a good notion of `Separated Stack'?
Awarded Dec 23, 2016 at 15:50
Is there an octonionic analog of the K3 surface, with implications for stable homotopy groups of spheres?
Awarded Nov 13, 2016 at 13:06
What are the fibrant objects in the injective model structure?
Awarded Dec 6, 2015 at 21:46
Loop Spaces as Generalized Smooth spaces or as Infinite dimensional Manifolds?
Awarded Feb 4, 2015 at 5:16
What is the Theorem of the Cube?
Awarded Jan 25, 2015 at 19:52
Functorial Whitehead Tower?
Awarded Nov 21, 2014 at 17:44
Lax Functors and Equivalence of Bicategories?
Awarded Oct 15, 2014 at 16:52
Do all 3D TQFTs come from Reshetikhin-Turaev?
Awarded Mar 24, 2013 at 19:35
Homological algebra for commutative monoids?
Awarded Dec 8, 2012 at 17:05
Elliptic Curves over F_1?
Awarded Oct 17, 2012 at 18:05
Why is this not an algebraic space?
Awarded Jan 3, 2012 at 2:35
A Peculiar Model Structure on Simplicial Sets?
Awarded Dec 9, 2011 at 17:50
Example Wanted: When Does Čech Cohomology Fail to be the same as Derived Functor Cohomology?
Awarded Nov 24, 2011 at 16:20
Torsors in Algebraic Geometry?
Awarded Jul 6, 2011 at 3:35
Invertible matrices of natural numbers are permutations... why?
Awarded Apr 17, 2011 at 16:20
Are higher categories useful?
Awarded Oct 26, 2010 at 15:05

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