PseudoNeo
  • Member for 10 years, 11 months
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2 answers
56 votes
4k views
25 bookmarks
Axiom of choice and automorphisms of vector spaces
4 answers
18 votes
415 views
12 bookmarks
Manageable project to learn some arithmetic geometry
3 answers
15 votes
1k views
6 bookmarks
Binary tetrahedral group and $\rm{SL}_2(\mathbb F_3)$
2 answers
13 votes
3k views
6 bookmarks
Is the quotient map a homotopy equivalence?
1 answers
13 votes
461 views
2 bookmarks
The Wronskian of holomorphic differentials as a q-differential
0 answers
11 votes
363 views
5 bookmarks
How do I know if an irreducible representation is a permutation representation?
3 answers
11 votes
1k views
3 bookmarks
Differentiable at a point
1 answers
11 votes
154 views
5 bookmarks
Diffeomorphism-invariant spaces of smooth functions
2 answers
8 votes
165 views
Syndeticity- and thickness-preserving bijections of $\mathbb N$
1 answers
7 votes
204 views
2 bookmarks
How many coefficients do you have to change to lower the rank of a matrix?
1 answers
7 votes
1k views
6 bookmarks
Irreducibility of $X^n - 2$ over $\mathbf Z[i]$.
1 answers
6 votes
219 views
1 bookmarks
Minimal example of Simpson's paradox
0 answers
5 votes
186 views
1 bookmarks
Weighted polynomial approximation on the half-line
0 answers
5 votes
152 views
2 bookmarks
What does it take to have a precise definition of volume?
1 answers
5 votes
416 views
1 bookmarks
Is the intersection of two f.g. projective submodules f.g.?
1 answers
5 votes
955 views
5 bookmarks
Ring of analytic functions on the circle
1 answers
4 votes
723 views
1 bookmarks
Easy proof of a weak form of Mertens's second theorem
2 answers
4 votes
187 views
2 bookmarks
Connectedness arguments in elementary mathematics?
1 answers
4 votes
285 views
1 bookmarks
Center of the unit group $R^\times$ of a ring.
1 answers
3 votes
525 views
1 bookmarks
Is the kernel of a linear form $f : A^n \to A$ a projective module?
1 answers
3 votes
825 views
Matrices: injectivity and determinant
0 answers
2 votes
57 views
1 bookmarks
Weird analogy between quadratic forms and formal systems