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A quiver approach to quasi-quantum groups with the Chevalley property
[Submitted on 9 Jun 2026 (v1), last revised 24 Jun 2026 (this ve · 2026-06-11 · via math updates on arXiv.org

Mathematics > Quantum Algebra

arXiv:2606.10946 (math)

[Submitted on 9 Jun 2026 (v1), last revised 24 Jun 2026 (this version, v3)]

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Abstract:In this paper, we develop a quiver approach to coquasi-Hopf algebras with the dual Chevalley property. We introduce a modified generalized path coalgebra $\Bbbk(\mathrm{Q},\mathcal{S})$ associated with a given quiver $\mathrm{Q}$ and a collection of simple coalgebras $\mathcal{S}=\{C_i\mid i\in \mathrm{Q}_0\}$ indexed by the vertices of $\mathrm{Q}$, such that its link quiver coincides with $\mathrm{Q}$. We prove that such a coalgebra admits a graded coquasi-Hopf algebra structure with the dual Chevalley property if and only if $\mathrm{Q}$ is a generalized Hopf quiver and $\bigoplus_{i\in \mathrm{Q}_0}C_i$ forms a cosemisimple coquasi-Hopf algebra. Moreover, we provide a classification of these coquasi-Hopf algebra structures. We then study the link-indecomposable components of a coquasi-Hopf algebra with the dual Chevalley property, and give the generalized dual Gabriel's theorem for such coquasi-Hopf algebras. As an application, we apply the quiver method to classify finite integral tensor categories with the Chevalley property of finite representation type. We also give structural characterizations of coradically graded coquasi-Hopf algebras of tame corepresentation type. Furthermore, we investigate finite braided integral tensor categories with the Chevalley property via the quiver approach.

Submission history

From: Jing Yu [view email]
[v1] Tue, 9 Jun 2026 14:52:43 UTC (60 KB)
[v2] Wed, 10 Jun 2026 07:22:44 UTC (60 KB)
[v3] Wed, 24 Jun 2026 12:03:21 UTC (61 KB)

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