Irreducible representations of pointed Hopf algebras of type $A_2$

Abstract

We classify the irreducible representations of a family of finite-dimensional pointed liftings $H_\lambda$ of the Nichols algebra associated with the diagram $A_2$ with parameter $q=-1$. We show that these algebras have infinite representation type and construct an indecomposable $H_\lambda$-module of dimension $n$ for each $n\in\mathbb{N}$. Finally, we study a semisimple category $\underline{\operatorname{Rep}} H_\lambda$ arising as a quotient of $\operatorname{Rep} H_\lambda$.

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