Timeline for Subquotients in the Verma filtration on Verma modules
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jan 23, 2015 at 13:56 | comment | added | Jim Humphreys | @Allen: There are several fine points to add if you want a real algorithm, but my edited answer is already getting too long. | |
| Jan 22, 2015 at 21:03 | history | edited | Jim Humphreys | CC BY-SA 3.0 |
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| Jan 21, 2015 at 22:43 | comment | added | Jim Humphreys | @Allen: Yes, the lower rank type A examples are often misleadingly well-behaved. Best to be skeptical. | |
| Jan 21, 2015 at 21:45 | comment | added | Allen Knutson | Stroppel's 2003 paper "Category $\mathcal O$: quivers and endomorphism rings of projectives" math.uni-bonn.de/ag/stroppel/Quivers.pdf has the structure of regular $\mathfrak{sl}_4$ Vermas in the Appendix. She informs me that one can use it to verify that the intersections are indeed the sums, but like everyone else I've asked, is unwilling to believe that this will persist past type $A_9$ or so. | |
| Dec 19, 2014 at 23:20 | history | edited | Jim Humphreys | CC BY-SA 3.0 |
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| Nov 15, 2014 at 14:56 | history | answered | Jim Humphreys | CC BY-SA 3.0 |