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Classification of silted algebras for two quivers of Dynkin type $\mathbb{D}_{n}$

Representation Theory 2025-09-09 v1 Category Theory

Abstract

Let QQ be the Dynkin quiver of type Dn\mathbb{D}_{n} with linear orientation and let QQ' be the quiver formed by reversing the arrow at the unique source in QQ. In this paper, we present a complete classification of both silted algebras and strictly shod algebras associated with these two quivers. Based on the classification, we derive formulas for counting the number of silted algebras and strictly shod algebras. Furthermore, we establish that all strictly shod algebras corresponding to QQ and QQ' are string algebras. As an application, we provide a way to construct examples such that the realization functor which is induced from the tt-structure does not extend to a derived equivalence.

Keywords

Cite

@article{arxiv.2509.05906,
  title  = {Classification of silted algebras for two quivers of Dynkin type $\mathbb{D}_{n}$},
  author = {Houjun Zhang},
  journal= {arXiv preprint arXiv:2509.05906},
  year   = {2025}
}

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40 pages