User Antoine Labelle

107 votes

Small ideas that became big

answered Aug 15, 2020 at 16:55

20 votes

Accepted

Eigenvalue pattern

answered May 25, 2021 at 3:28

10 votes

Many numbers with pairwise differences squares

answered Oct 19, 2020 at 14:56

8 votes

Accepted

On the coefficients that appear in finite groups of matrices with integer entries

answered May 4, 2021 at 15:28

8 votes

Accepted

Three circles meet at a point

answered May 26, 2021 at 4:23

8 votes

Accepted

Is the appearance of Schur functions a coincidence?

answered Oct 8, 2023 at 16:38

7 votes

Accepted

Galois action on the pro-algebraic completion of the singular fundamental group

answered Nov 5 at 2:02

6 votes

Accepted

Poset definition of dimension

answered Nov 9 at 2:48

6 votes

When is 2 qualitatively different from 3?

answered Nov 11 at 5:17

6 votes

Examples when quantum $q$ equals to arithmetic $q$

answered Mar 23 at 3:41

6 votes

On a matrix problem in the field $\mathbb F_2$

answered Mar 16, 2021 at 20:30

5 votes

Accepted

Explicit large finite fields in characteristic $2$

answered Nov 12, 2020 at 17:38

5 votes

Accepted

Graphs on $\{0,1\}^n$ based on fixed Hamming distance

answered Oct 20, 2020 at 13:09

5 votes

Examples of (Git) open math (texts) projects

answered Sep 15, 2020 at 4:15

5 votes

Prime ideals and class group equations

answered Sep 22, 2020 at 13:09

5 votes

Accepted

Eigenvalues invariant under 90° rotation

answered Jul 31, 2022 at 16:18

4 votes

Abelian groups such that $A \cong \mathrm{End}(A)$ and "complete rings"

answered Mar 2, 2022 at 15:20

4 votes

Accepted

Average of polynomials over the real sphere

answered Jan 15, 2023 at 1:04

4 votes

a Littlewood–Offord-type problem concerning the "cubical lattice"

answered Jun 2, 2021 at 2:46

4 votes

Number of ways to choose + and - to make an equation correct

answered Nov 6, 2020 at 2:19

4 votes

Accepted

Similarity of two matrices

answered May 25, 2021 at 18:00

3 votes

Algebraically closed ring extension

answered Feb 12, 2021 at 20:51

3 votes

Accepted

Transversals and almost transversals of a finite family of sets

answered Oct 9, 2020 at 15:59

3 votes

Conceptual reason why the sign of a permutation is well-defined?

answered Mar 9, 2022 at 22:58

2 votes

Accepted

Action of $\widehat{\mathfrak{sl}_2}$ on symmetric functions with $\mathbb{Z}_{(2)}$ coefficients

answered Dec 6, 2022 at 19:00

2 votes

Existence of certain regular graphs

answered Jun 2, 2023 at 14:58

2 votes

What is $\mathbb{Q}_1$, the "field of $1$-adic numbers"?

answered Nov 17, 2023 at 2:26

2 votes

Accepted

Rank of sumsets in matroids

answered Sep 4, 2021 at 14:51

2 votes

Accepted

Upper bound of rank of a matrix

answered Oct 15, 2021 at 13:35

2 votes

Accepted

Probability calculation of rooted trees

answered Dec 22, 2021 at 16:02

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40 Answers

Small ideas that became big

Eigenvalue pattern

Many numbers with pairwise differences squares

On the coefficients that appear in finite groups of matrices with integer entries

Three circles meet at a point

Is the appearance of Schur functions a coincidence?

Galois action on the pro-algebraic completion of the singular fundamental group

Poset definition of dimension

When is 2 qualitatively different from 3?

Examples when quantum $q$ equals to arithmetic $q$

On a matrix problem in the field $\mathbb F_2$

Explicit large finite fields in characteristic $2$

Graphs on $\{0,1\}^n$ based on fixed Hamming distance

Examples of (Git) open math (texts) projects

Prime ideals and class group equations

Eigenvalues invariant under 90° rotation

Abelian groups such that $A \cong \mathrm{End}(A)$ and "complete rings"

Average of polynomials over the real sphere

a Littlewood–Offord-type problem concerning the "cubical lattice"

Number of ways to choose + and - to make an equation correct

Similarity of two matrices

Algebraically closed ring extension

Transversals and almost transversals of a finite family of sets

Conceptual reason why the sign of a permutation is well-defined?

Action of $\widehat{\mathfrak{sl}_2}$ on symmetric functions with $\mathbb{Z}_{(2)}$ coefficients

Existence of certain regular graphs

What is $\mathbb{Q}_1$, the "field of $1$-adic numbers"?

Rank of sumsets in matroids

Upper bound of rank of a matrix

Probability calculation of rooted trees