arXiv:1907.12862 Abstract | arXiv Analytics

arXiv:1907.12862 [math.RT]Abstract References Reviews Resources

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

Tomasz Brzeziński, Julian Külshammer, Steffen Koenig

Published 2019-07-30Version 1

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.

Comments: 13 pages

Categories: math.RT, math.AG, math.RA

Subjects: 16G10, 16E45, 16T15, 17B10, 17B35

Keywords: quasi-hereditary algebra, directed bocs, morita equivalence, dual algebra, exact borel subalgebras arising

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