Timeline for What cohomology theories would be interesting for nilpotent cones/nullcones?
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| Dec 1, 2009 at 4:28 | comment | added | Puraṭci Vinnani | ahh yes sorry I wasn't ruling out intersection cohomology, that's the first one I'm going to compute I was just asking for other cohomologies that might be interesting to do, in addition. As I understand, nothing much has been done of the specific nullcone I'm doing (according to some experts at my uni), so intersection cohomology is still interesting to do in my case. | |
| Dec 1, 2009 at 4:10 | comment | added | Ben Webster♦ | But you're still talking about the adjoint representation, right? The question was about the nilcone of the an arbitrary representation; is that buried somewhere in Lusztig's work? | |
| Dec 1, 2009 at 3:40 | comment | added | Kevin McGerty | The stalks of intersection cohomology sheaves for unipotent orbit closures with coefficients in any equivariant simple local system have been computed (at least in the sense that there is an algorithm for their computation) by Lusztig towards the end of the character sheaves papers. | |
| Dec 1, 2009 at 0:58 | history | answered | Ben Webster♦ | CC BY-SA 2.5 |