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arXiv:2301.06757 [math.RT]AbstractReferencesReviewsResources

$A_\infty$-deformations of zigzag algebras via Ginzburg algebras

Junyang Liu, Zhengfang Wang

Published 2023-01-17Version 1

This note aims to give a short proof of the recent result due to Etg\"u--Lekili (2017) and Lekili--Ueda (2021): The zigzag algebra of any finite connected tree over a field of characteristic zero is intrinsically formal if and only if the tree is of type ADE.

Comments: 7 pages, comments are very welcome
Categories: math.RT, math.QA, math.SG
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