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Jake's user avatar
Jake's user avatar
Jake
  • Member for 9 years, 7 months
  • Last seen more than 4 years ago
6 votes
5 answers
5k views

What is an extragradient method?

5 votes
1 answer
199 views

How can the generators of subalgebra $\mathfrak g^{\sigma}$ of $\sigma$-stable elements be expressed through generators of Lie algebra $\mathfrak g$?

4 votes
1 answer
596 views

Reference for exercises with solutions for affine Lie algebras

3 votes
2 answers
666 views

How to find the multiplicity of weight in a Verma module?

2 votes
1 answer
136 views

Is there any standard procedure to properly define a composite metric?

2 votes
0 answers
153 views

$l$-weights and $l$-character of finite-dimensional highest $l$-weight representation of $L\mathfrak{g}$

2 votes
1 answer
176 views

How does an element $T\left(z\right)$ act on a $\mathcal{U}_{q}\left(\mathcal{L}\mathfrak{sl}_{2}\right)\left[\left[z\right]\right]$-module?

1 vote
0 answers
61 views

Reference for using an algebra of meromorphic functions to extend a Lie algebra

1 vote
0 answers
68 views

Reference for $q^{\eta\sum_{i}t_{\lambda_{i}}\otimes t_{\mu_{i}}}$ part of an expression for universal $R$-matrix of a quantum group algebra

1 vote
0 answers
53 views

How to improve this argument for a restriction of the universal $R$-matrix to $U_{q}^{+}(\mathfrak{g})\otimes U_{q}^{0}(\mathfrak{g})$?