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Questions related to the Bernstein-Gelfand-Gelfand category O and generalizations

7 votes
0 answers
218 views

Twisted D-module structure on pushfoward of structure sheaf of Bruhat cell

Apologies for the basic question, but my experience on math.stackexchange tells me that this will go unanswered there. Background: In the principal block, the dual Verma modules (with highest weight $ …
Fan Zhou's user avatar
  • 311
4 votes
1 answer
215 views

Spectral sequence from standard/Verma filtration/flag to compute Lie algebra cohomology of t...

I'm not sure this question fully qualifies as a research-level math question, but from my (limited) past experience on stackexchanged I feared this question might not get an answer there. Setting: the …
Fan Zhou's user avatar
  • 311