Questions tagged [sheets]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
4 votes
1 answer
345 views

Affine analog of the theory of sheets

In the study of adjoint orbits in a complex semi-simple lie algebra, there is a well known object known as a "sheet". These are the irreducible components of the union of orbits of the same dimension. ...
Aswin's user avatar
  • 1,063
1 vote
1 answer
318 views

Sheets in Lie algebras are classified by the pair $(\mathfrak{l},O)$. How about sheets in Lie groups?

Borho in this paper showed that a sheet (i.e. a suitable union of adjoint orbits of the same dimension) in a complex semisimple Lie algebra $\mathfrak{g}$ is classified by a pair $(\mathfrak{l},O)$ ...
Yuji Tachikawa's user avatar