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arXiv · 1907.12862

From quasi-hereditary algebras with exact Borel subalgebras to directed bocses

Tomasz Brzeziński·Julian Külshammer·Steffen Koenig
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Abstract

Up to Morita equivalence, every quasi-hereditary algebra is the dual algebra of a directed bocs or coring. From the bocs, an exact Borel subalgebra is obtained. In this paper a characterisation of exact Borel subalgebras arising in this way is given.

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Tomasz Brzeziński, Julian Külshammer, Steffen Koenig. 2019-07-30. From quasi-hereditary algebras with exact Borel subalgebras to directed bocses. https://doi.org/10.1112/blms.12331

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