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arXiv 2510.04865math.RT
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带势物种的雅可比代数与2-表示有限代数

Jacobian Algebras of Species with Potentials and 2-Representation Finite Algebras

Christoffer Söderberg

AI总结:

本研究围绕带势物种的雅可比代数展开,证明其截断集合在截断突变下的传递性,明确截断、截断突变分别对应截断雅可比代数与2-APR倾斜,构造了新的2-表示有限$\u211a$-代数实例。

摘要:

我们研究由物种张量代数的张量积得到的2-表示有限$\u211a$-代数。在早期工作中,我们计算出上述代数的高预投射代数可表示为某类带势物种$(S, W)$的雅可比代数,这类代数是自入射且有限维的。对这些雅可比代数进行截断,可得到丰富的2-表示有限$\u211a$-代数来源。在合适假设下,我们证明$(S, W)$的所有截断集合在逐次截断突变下是传递的。此外,我们表明截断与截断突变分别对应截断雅可比代数和2-APR倾斜。由此,在特定假设下,所有截断雅可比代数都可通过2-APR倾斜相互关联。我们构造了多种新的2-表示有限$\u211a$-代数实例。

英文摘要:

We study $2$-representation finite $\mathbb{K}$-algebras obtained from tensor products of tensor algebras of species. In earlier work we computed the higher preprojective algebra of said algebras to be given as Jacobian algebras of certain species with potential $(S, W)$, which are self-injective and finite dimensional. Truncating these Jacobian algebras yields a rich source of $2$-representation finite $\mathbb{K}$-algebras. Under suitable assumptions, we prove that the set of all cuts of $(S, W)$ is transitive under successive cut-mutations. Furthermore, we show that cuts and cut-mutation correspond to truncated Jacobian algebras and $2$-APR tilting, respectively. Consequently, under certain assumptions, all truncated Jacobian algebras are related to each other via $2$-APR tilting. We produce various new examples of $2$-representation finite $\mathbb{K}$-algebras.

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