User Jianrong Li

3 votes

1 answer

1k views

What are the relations among canonical basis, dual canonical basis, Semicanonical Basis, dual semicanonical bases?

asked May 9, 2017 at 19:27

3 votes

1 answer

313 views

Trying to understand the proof of Laurent phenomenon of cluster algebras

asked Dec 9, 2016 at 20:52

3 votes

2 answers

234 views

How to translate cluster X-coordinates to cluster A-coordinates?

asked Feb 22, 2017 at 8:31

3 votes

4 answers

610 views

Factorization in the group algebra of symmetric groups

asked Sep 16, 2016 at 8:05

3 votes

1 answer

251 views

Are there p-adic or finite field analogue of Drinfeld-Jimbo's quantum groups

asked Oct 5, 2016 at 13:01

3 votes

0 answers

234 views

Quantum Schur-Weyl duality for quantum affine algebras of other types

asked Oct 16, 2016 at 9:01

3 votes

1 answer

339 views

One of Poincaré's theorems about positive rational functions

asked Jul 30, 2016 at 18:49

3 votes

0 answers

153 views

Classical Yang-Baxter equation for Lie algebras and Lie superalgebras

asked Sep 9, 2016 at 18:35

3 votes

0 answers

180 views

Reference request: which elements in a Coxeter group has longest reflection length?

asked Dec 19, 2018 at 17:13

3 votes

0 answers

135 views

How to understand extremal vector?

asked Sep 1, 2018 at 8:58

3 votes

0 answers

127 views

How to compute the asymptotic of a summation which involves binomial coefficients?

asked Aug 5, 2018 at 12:23

3 votes

4 answers

367 views

References request: representations of classical groups

asked Aug 8, 2018 at 6:48

3 votes

1 answer

313 views

What is $\rho^{\vee}(-1)$?

asked May 8, 2018 at 20:06

3 votes

0 answers

59 views

Kernel of the map $\mathbb{C}[G]^U \to \mathbb{C}[U^+]$

asked Oct 6, 2020 at 14:21

3 votes

0 answers

109 views

What is the combinatorial rule from the array of integers to the semistandard Young tableau?

asked Dec 22, 2020 at 17:05

3 votes

1 answer

116 views

References request: Auslander-Reiten theory of algebras like $B_{k,n}$

asked Oct 25, 2020 at 15:39

2 votes

0 answers

97 views

How to define the limit of an infinite sequence of Newton polytopes rigorously?

asked Jan 3, 2023 at 12:03

2 votes

1 answer

257 views

Grassmannian $\mathrm{Gr}(k, \pm \infty)$ in infinite dimension

asked Nov 14, 2023 at 12:07

2 votes

0 answers

80 views

Reference request: additive basis of $\mathbb{C}[N]$

asked Sep 30, 2020 at 9:01

2 votes

0 answers

74 views

Berenstein-Fomin-Zelevinsky's Ininital seeds and initial seeds from Postnikov diagrams

asked Jan 5, 2021 at 9:15

2 votes

0 answers

93 views

Counting the number of weakly separated pairs

asked Jan 12, 2021 at 9:19

2 votes

0 answers

38 views

The coefficient $p_{c'}^{c}$ in a formula in Lusztig's canonical basis paper

asked Nov 19, 2021 at 14:44

2 votes

1 answer

134 views

Auslander-Reiten sequence and projective covers

asked Oct 24, 2020 at 14:59

2 votes

1 answer

158 views

How to show that $x_{k+1}+x_{k+2} + \cdots + x_n < 2m$?

asked Jan 26, 2020 at 9:35

2 votes

0 answers

61 views

Multiplication formula in Grassmannian cluster categories

asked May 26, 2020 at 6:25

2 votes

1 answer

149 views

How to estimate a summation?

asked Aug 6, 2018 at 14:06

2 votes

0 answers

97 views

Hilbert series of filtered algebras

asked Nov 15, 2018 at 18:07

2 votes

1 answer

2k views

How to estimate a total variation distance?

asked Aug 3, 2018 at 18:58

2 votes

0 answers

126 views

Imaginary roots in $\widetilde{E}_8$

asked Dec 4, 2019 at 17:20

2 votes

2 answers

2k views

Two definitions of the super Jacobi identity

asked Sep 7, 2016 at 15:09

Stack Exchange Network

210 Questions

What are the relations among canonical basis, dual canonical basis, Semicanonical Basis, dual semicanonical bases?

Trying to understand the proof of Laurent phenomenon of cluster algebras

How to translate cluster X-coordinates to cluster A-coordinates?

Factorization in the group algebra of symmetric groups

Are there p-adic or finite field analogue of Drinfeld-Jimbo's quantum groups

Quantum Schur-Weyl duality for quantum affine algebras of other types

One of Poincaré's theorems about positive rational functions

Classical Yang-Baxter equation for Lie algebras and Lie superalgebras

Reference request: which elements in a Coxeter group has longest reflection length?

How to understand extremal vector?

How to compute the asymptotic of a summation which involves binomial coefficients?

References request: representations of classical groups

What is $\rho^{\vee}(-1)$?

Kernel of the map $\mathbb{C}[G]^U \to \mathbb{C}[U^+]$

What is the combinatorial rule from the array of integers to the semistandard Young tableau?

References request: Auslander-Reiten theory of algebras like $B_{k,n}$

How to define the limit of an infinite sequence of Newton polytopes rigorously?

Grassmannian $\mathrm{Gr}(k, \pm \infty)$ in infinite dimension

Reference request: additive basis of $\mathbb{C}[N]$

Berenstein-Fomin-Zelevinsky's Ininital seeds and initial seeds from Postnikov diagrams

Counting the number of weakly separated pairs

The coefficient $p_{c'}^{c}$ in a formula in Lusztig's canonical basis paper

Auslander-Reiten sequence and projective covers

How to show that $x_{k+1}+x_{k+2} + \cdots + x_n < 2m$?

Multiplication formula in Grassmannian cluster categories

How to estimate a summation?

Hilbert series of filtered algebras

How to estimate a total variation distance?

Imaginary roots in $\widetilde{E}_8$

Two definitions of the super Jacobi identity