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arXiv · 1712.05299

Extensions between Verma modules for dihedral groups

Gurbir Dhillon·Visu Makam
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Abstract

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.

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BibTeXRIS

Gurbir Dhillon, Visu Makam. 2017-12-14. Extensions between Verma modules for dihedral groups. https://arxiv.org/abs/1712.05299

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