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earned this badge 18 times.
Why not define triangulated categories using a mapping cone functor?
Awarded Dec 20, 2020 at 12:18
Is every $p$-group the $\mathbb{F}_p$-points of a unipotent group
Awarded Dec 20, 2020 at 12:18
Rolling without slipping interpretation of torsion
Awarded Oct 11, 2020 at 12:11
Conceptual algebraic proof that Grassmannian is closed in Plucker embedding
Awarded Feb 6, 2020 at 6:30
Is it consistent with ZF that $V \to V^{\ast \ast}$ is always an isomorphism?
Awarded Jan 13, 2018 at 14:52
What is induction up to $\varepsilon_0$?
Awarded Jan 6, 2018 at 1:03
A double grading of catalan numbers
Awarded Dec 5, 2017 at 19:43
What is the right version of "partitions of unity implies vanishing sheaf cohomology"
Awarded Nov 1, 2016 at 0:06
Do Abel summation and zeta summation always coincide?
Awarded Jul 18, 2016 at 11:34
Is there an Ehrhart polynomial for Gaussian integers
Awarded Jun 24, 2016 at 4:49
Finding a path through real rooted polynomials
Awarded Feb 25, 2016 at 18:43
Why does $d^n \exp(-x-x^{-1})/(dx)^n$ only have $n$ positive real zeroes?
Awarded Aug 21, 2015 at 19:24
How did Cole factor $2^{67}-1$ in 1903?
Awarded May 23, 2015 at 2:11
What is known about this plethysm?
Awarded Apr 3, 2015 at 2:55
Can assignment solve stable marriage?
Awarded Jul 22, 2014 at 7:54
Is there software to compute the cohomology of an affine variety?
Awarded Mar 5, 2014 at 20:56
What is Lagrange Inversion good for?
Awarded Nov 29, 2011 at 0:35
Is there a "Basic Number Theory" for elliptic curves?
Awarded Aug 1, 2011 at 8:05

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