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earned this badge 21 times.
Is a 'generic' variety nonsingular? Or singular?
Awarded Sep 13, 2023 at 7:32
Are there any nonlinear solutions to $f(x+1) - f(x) = f'(x)$?
Awarded Jul 24, 2022 at 19:42
Conceptual reason why the sign of a permutation is well-defined?
Awarded Mar 9, 2022 at 20:25
What are interesting families of subsets of a given set?
Awarded Apr 29, 2021 at 1:13
non principally polarized complex abelian varieties
Awarded Jul 26, 2019 at 19:40
Is a universally closed morphism of schemes quasi-compact ?
Awarded May 5, 2019 at 15:15
What's the probability that k + n^2 is squarefree, for fixed k?
Awarded May 22, 2018 at 2:59
Is there a Whitney theorem type theorem for projective schemes?
Awarded Aug 24, 2017 at 13:39
When a formal power series is a rational function in disguise
Awarded Apr 3, 2016 at 10:02
Theorems with unexpected conclusions
Awarded Mar 10, 2016 at 16:46
Everywhere locally isomorphic abelian varieties
Awarded Aug 1, 2015 at 18:11
Integer matrices with no integer eigenvalues
Awarded Mar 26, 2014 at 1:06
Order of the Tate-Shafarevich group
Awarded Jan 31, 2012 at 5:05
Intuition for the last step in Serre's proof of the three-squares theorem
Awarded Sep 2, 2011 at 4:35
Experimental mathematics leading to major advances
Awarded Feb 27, 2011 at 2:35
Expected determinant of a random NxN matrix
Awarded Oct 19, 2010 at 15:05
How can I define the product of two ideals categorically?
Awarded Aug 12, 2010 at 0:20
Is there an "elementary" proof of the infinitude of completely split primes?
Awarded Aug 6, 2010 at 10:05
Roots of truncations of $ e^x - 1$
Awarded Mar 15, 2010 at 21:06
Polynomial with the primes as coefficients irreducible?
Awarded Mar 15, 2010 at 19:50
Bringing Number and Graph Theory Together: A Conjecture on Prime Numbers
Awarded Jan 26, 2010 at 3:20

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