3
votes
3answers
260 views
Good even grading and principal Levi type
Let $\mathfrak g$ be a simple Lie algebra over $\mathbb C$ and let $e$ be a nilpotent element in it. In the theory of finite W-algebras one often encounters the following two condi …
12
votes
1answer
542 views
Cartan involution for finite W-algebras
Does anybody know if there is an analog of the Cartan (anti)involution for W-algebra
associated to a nilpotent element e, which is principal in some Levi subalgebra
of semi-simple …
7
votes
2answers
458 views
Is the category of representations of a finite W-algebra monoidal?
My question is prompted by Ben Webster's answer to this question.
Is there a notion of tensor product for representations of a finite W-algebra?
I thought about this question yea …
3
votes
3answers
328 views
Irreducible representations of W-algebra in case $\mathfrak sl_3$
Is there a paper in which are all the irreps of the finite W-algebra with trivial action of the center are classified, in the case of $\mathfrak sl_3(\mathbb C)$ and the minimal or …
3
votes
1answer
306 views
A question on the construction of finite W-algebras
In a well known construction of finite W-algebras, one first constructs a certain
nilpotent subalgebra $\mathfrak{m}$ along with a character $\chi:\mathfrak{m}\rightarrow \mathbb{C …

