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darij grinberg's user avatar
darij grinberg's user avatar
darij grinberg
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267 Answers

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12 votes

Conjectures in the representation theory of the symmetric group

8 votes

Most memorable titles

10 votes

AI tools for editing and re-generating old math documents

19 votes

An example of a beautiful proof that would be accessible at the high school level?

5 votes
Accepted

Factorization of Littlewood-Richardson Coefficients

4 votes
Accepted

Schur functors = Weyl functors in characteristic zero?

1 vote

Errata for Fulton's "Young tableaux"

11 votes

Examples of (Git) open math (texts) projects

6 votes

Examples of common false beliefs in mathematics

3 votes

About Cauchy identity for Schur polynomials

7 votes
Accepted

$U\left(\mathfrak a\right) \otimes_{U\left(\mathfrak a\cap\mathfrak b\right)} U\left(\mathfrak b\right) \cong U\left(\mathfrak a + \mathfrak b\right)$ over a ring containing $\mathbb{Q}$

3 votes

Why is alpha-equivalence in untyped $\lambda$-calculus substitutive?

5 votes
Accepted

Constructive proof of univariate McCoy theorem without Dedekind-Mertens?

7 votes

Results from abstract algebra which look wrong (but are true)

7 votes

Examples of common false beliefs in mathematics

2 votes
Accepted

Eriksson's thesis "Strongly convergent games and Coxeter groups"

3 votes

On similar matrices and polynomial matrices

6 votes
Accepted

Is the discriminant of a free (as a module) $R$-algebra always congruent to a square modulo 4?

31 votes

Most memorable titles

28 votes
Accepted

A Putnam problem with a twist

3 votes

On a proof involving Young symmetrizers acting on tensor spaces

2 votes

Hopf algebras arising as Group Algebras

5 votes

The logic of convex sets

3 votes

A Leibniz-like formula for $(f(x) \frac{d}{dx})^n f(x)$?

5 votes
Accepted

Minors of low rank skew-symmetric matrix

4 votes
Accepted

Determinant connection between Schur polynomials and power sum polynomials

7 votes

Collecting alternative proofs for the oddity of Catalan

3 votes
Accepted

$2$-adic valuation of Schur $P$-functions in the power-sum basis

1 vote
Accepted

Properties of the generic matrix - struggles with constructive proofs

0 votes

Good "casual" advanced math books

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