Up to Morita equivalence, every quasi‐hereditary algebra is the dual algebra of a directed bocs or a 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.

中文翻译：

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从具有精确Borel次代数的准世代数到有向Bocses

直到Morita等价，每个准遗传代数都是有向Bocs或取芯的对偶代数。从bocs，获得精确的Borel子代数。本文给出了以这种方式产生的精确Borel子代数的刻画。