User Antoine Labelle

11 votes

1 answer

328 views

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

asked Sep 3, 2021 at 23:08

10 votes

1 answer

458 views

Class numbers of functions fields and spanning trees

asked Jul 15, 2022 at 1:03

9 votes

0 answers

327 views

Equivalence of Yetter-Drinfeld modules to Drinfeld center: is there a purely categorical proof?

asked Jan 20, 2023 at 20:29

9 votes

0 answers

146 views

Ringel's interpretation of quantum groups as Hall algebras at $q=1$

asked Aug 28 at 20:04

8 votes

0 answers

228 views

Chevalley-Solomon formula and Weyl character formula

asked Mar 15 at 0:41

8 votes

0 answers

145 views

Conceptual explanation for the gap in the spectrum of biregular trees

asked Jun 28, 2022 at 14:08

7 votes

0 answers

200 views

Surprising symmetry in the Ramanujan bound

asked Aug 5, 2022 at 19:25

7 votes

1 answer

491 views

Equivariant perverse sheaves and orbit stratification

asked Jul 12, 2023 at 20:14

6 votes

4 answers

415 views

Interpretation of the algebra of natural endomorphisms of the fiber functor of $\operatorname{Rep}(G)$

asked Apr 18 at 18:46

6 votes

1 answer

186 views

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

asked Jun 22, 2022 at 2:48

5 votes

2 answers

518 views

How is the classification of groups extensions by $H^2$ related to Yoneda Ext?

asked Dec 15, 2023 at 20:20

5 votes

0 answers

250 views

Classical first-order model theory via hyperdoctrines

asked Jan 11 at 16:07

5 votes

0 answers

120 views

Representation-theoretic interpretation of double Schur polynomials

asked Jul 18, 2023 at 15:43

4 votes

0 answers

191 views

K-theory of toric varieties

asked Sep 14, 2023 at 4:56

4 votes

0 answers

104 views

Maximal number of smallest circuits in a matroid

asked Jun 30, 2020 at 13:36

4 votes

1 answer

207 views

Digraphs with unique walk of length $k$ between any two vertices

asked Jul 17, 2020 at 16:15

4 votes

0 answers

190 views

Gelfand's transform for noncommutative $C^*$-algebras

asked Aug 12, 2022 at 13:54

4 votes

2 answers

454 views

Which topological spaces have a standard Borel $\sigma$-algebra?

asked Dec 12, 2022 at 17:20

4 votes

0 answers

128 views

Tannakian reconstruction and the distribution algebra

asked Jun 28, 2023 at 19:28

3 votes

0 answers

151 views

Is there a classical version of Yetter-Drinfeld modules?

asked Feb 23, 2023 at 2:16

3 votes

1 answer

348 views

Can graphs of groups be thought of as "graph objects" in the category of groupoids?

asked Sep 24, 2022 at 17:31

3 votes

0 answers

69 views

Subrings of the ring of symmetric functions

asked Feb 18, 2022 at 0:34

3 votes

1 answer

192 views

Discrepancy of random bipartite graphs

asked May 26, 2022 at 16:09

3 votes

0 answers

192 views

Hodge symmetry without $\mathbb{C}$ [duplicate]

asked Sep 22, 2023 at 14:36

3 votes

0 answers

164 views

Pro-algebraic fundamental groups

asked Nov 8 at 16:31

2 votes

0 answers

128 views

Nonabelian Hodge correspondence for $\mathbb{G}_m$

asked Nov 13 at 14:18

2 votes

0 answers

159 views

Artin map and profinite completion of the idèles

asked Feb 21, 2022 at 21:52

2 votes

0 answers

95 views

Completions of infinite rank Kac-Moody algebras

asked Apr 29, 2023 at 16:20

1 vote

1 answer

152 views

Discrepancy of random bipartite graphs (2)

asked May 26, 2022 at 23:49

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29 Questions

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

Class numbers of functions fields and spanning trees

Equivalence of Yetter-Drinfeld modules to Drinfeld center: is there a purely categorical proof?

Ringel's interpretation of quantum groups as Hall algebras at $q=1$

Chevalley-Solomon formula and Weyl character formula

Conceptual explanation for the gap in the spectrum of biregular trees

Surprising symmetry in the Ramanujan bound

Equivariant perverse sheaves and orbit stratification

Interpretation of the algebra of natural endomorphisms of the fiber functor of $\operatorname{Rep}(G)$

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

How is the classification of groups extensions by $H^2$ related to Yoneda Ext?

Classical first-order model theory via hyperdoctrines

Representation-theoretic interpretation of double Schur polynomials

K-theory of toric varieties

Maximal number of smallest circuits in a matroid

Digraphs with unique walk of length $k$ between any two vertices

Gelfand's transform for noncommutative $C^*$-algebras

Which topological spaces have a standard Borel $\sigma$-algebra?

Tannakian reconstruction and the distribution algebra

Is there a classical version of Yetter-Drinfeld modules?

Can graphs of groups be thought of as "graph objects" in the category of groupoids?

Subrings of the ring of symmetric functions

Discrepancy of random bipartite graphs

Hodge symmetry without $\mathbb{C}$ [duplicate]

Pro-algebraic fundamental groups

Nonabelian Hodge correspondence for $\mathbb{G}_m$

Artin map and profinite completion of the idèles

Completions of infinite rank Kac-Moody algebras

Discrepancy of random bipartite graphs (2)