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arXiv · 1106.5665

The Weyl extension algebra of $GL_2(\bar{\mathbb{F}}_p)$

Vanessa Miemietz·Will Turner
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Abstract

We compute the Yoneda extension algebra of the collection of Weyl modules for $GL_2$ over an algebraically closed field of positive characteristic p by developing a theory of generalised Koszul duality for certain 2-functors, one of which controls the rational representation theory of $GL_2$ over such a field.

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BibTeXRIS

Vanessa Miemietz, Will Turner. 2011-06-28. The Weyl extension algebra of $GL_2(\bar{\mathbb{F}}_p)$. https://arxiv.org/abs/1106.5665

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