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Mathematics
Alex Elzenaar's user avatar
Alex Elzenaar's user avatar
Alex Elzenaar's user avatar
Alex Elzenaar
  • Member for 6 years, 4 months
  • Last seen this week
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Top posts

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5
Presentation of a parabolic subgroup of $SL(2,\Bbb Z)$ (image of representation of torus links)
Jul 20, 2025
4
Is rank of fundamental group bounded below by number of boundary surfaces, in dimension 3?
Feb 27
4
Is rank of fundamental group bounded below by number of boundary surfaces, in dimension 3?
Feb 27
3
Isomorphisms between affine and quasi-affine varieties
Jan 14, 2020
3
Fulton's exercise 6.11: varieties are quasi-compact
Jan 16, 2020
2
Computing the Euler characteristic of a variety via cohomology
Sep 7, 2020
1
Computing the Euler characteristic of a variety via cohomology
Sep 7, 2020
1
Are polynomials with more terms less likely to be reducible?
Jan 27, 2021
1
What can replace "dimension $0$" to measure discreteness of varieties over $ \mathbb{R} $?
Jan 29, 2021
1
Etymology of the term "stabilised" for Heegaard splittings
Dec 25, 2023

Top network posts

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13
What was the error in the proof about kissing numbers in Proofs from the Book
5
Dystopian New Zealand YA novel where teenagers are kidnapped by the car they were trying to steal and taken to an organ theft ring