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arXiv:1303.6535 [math.RT]AbstractReferencesReviewsResources

Extensions of Verma modules

Rahbar Virk

Published 2013-03-26, updated 2014-08-11Version 2

Comments on extensions of Verma modules in the Bernstein-Gelfand-Gelfand Category O.

Comments: Crucial flaw in proof of Theorem 3. The argument only gives a lower bound, not purity as claimed (the latter most likely does not hold except for in small rank)
Categories: math.RT
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