Xiaolan Yu

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20112017

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math.QA2012

Calabi-Yau Nichols algebras of Hecke type

Xiaolan Yu, Yinhuo Zhang

Let $R$ be a Nichols algebra of Hecke type. In this paper, we show that if $R$ is Noetherian and of finite global dimension, then $R$ has a rigid dualizing complex. We then give a…

math.QA2011

Ext algebra of Nichols algebras of type $A_{2}$

Xiaolan Yu, Yinhuo Zhang

We give the full structure of the Ext algebra of a Nichols algebra of type $A_{2}$ by using the Hochschild-Serre spectral sequence. As an application, we show that the pointed Hopf a…

Calabi-Yau Nichols algebras of Hecke type

Ext algebra of Nichols algebras of type A2​

Ext algebra of Nichols algebras of type $A_{2}$