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arXiv:1712.05299 [math.RT]AbstractReferencesReviewsResources

Extensions between Verma modules for dihedral groups

Gurbir Dhillon, Visu Makam

Published 2017-12-14Version 1

Computing the extensions between Verma modules is in general a very difficult problem. Using Soergel bimodules, one can construct a graded version of the principal block of Category $\mathcal{O}$ for any finite coxeter group. In this setting, we compute the extensions between Verma modules for dihedral groups.

Categories: math.RT
Subjects: 17B10
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