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Results tagged with springer-fibres
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user 4231
3
votes
What's a good example/reference for cohomology classes on Springer fibers that aren't restri...
I think the standard early reference is the paper by Hotta and Springer here, in which they work with $\ell$-adic cohomology (but the results seem to carry over to other settings). What they show is …
- 52.9k
6
votes
Accepted
Can we count the number of simple modules for a reduced enveloping algebra?
The answers to your several closely related questions are not yet known, though many parts of the story have emerged. In particular, there is no "formula" for the number of simple $U_\chi(\mathfrak{g …
- 52.9k