arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1101.4113math.RT
收藏

单态范畴中的Auslander-Reiten平移

Auslander-Reiten translations in monomorphism categories

Bao-Lin Xiong, Pu Zhang, Yue-Hui Zhang

摘要:

我们推广了Ringel和Schmidmeier关于子模范畴$\mathcal S_2(A)$的Auslander-Reiten变换到单态范畴$\mathcal S_n(A)$的理论。与$n=2$的情形一样,$\mathcal S_n(A)$也有Auslander-Reiten序列,并且$\mathcal S_n(A)$的Auslander-Reiten平移$τ_{\mathcal{S}}$可以通过$A$ -mod的$τ$显式表示.此外,如果$A$是自内射代数,我们还研究了$τ_{\mathcal{S}}$在$\mathcal S_n(A)$的对象上的周期性,以及Serre函子$F_{\mathcal S}$在稳定单态范畴$\underline{\mathcal{S}_n(A)}$的对象上的周期性.特别地,$τ_{\mathcal S}^{2m(n+1)}X\cong X$为$X\in\mathcal{S}_n(\A(m, t))$ ;和$F_{\mathcal S}^{m(n+1)}X\cong X$为$X\in\underline{\mathcal{S}_n(\A(m, t))}$,其中$\A(m, t), \ m\ge1, \ t\ge2,$是自内射Nakayama代数。

英文摘要:

We generalize Ringel and Schmidmeier's theory on the Auslander-Reiten translation of the submodule category $\mathcal S_2(A)$ to the monomorphism category $\mathcal S_n(A)$. As in the case of $n=2$, $\mathcal S_n(A)$ has Auslander-Reiten sequences, and the Auslander-Reiten translation $τ_{\mathcal{S}}$ of $\mathcal S_n(A)$ can be explicitly formulated via $τ$ of $A$-mod. Furthermore, if $A$ is a selfinjective algebra, we study the periodicity of $τ_{\mathcal{S}}$ on the objects of $\mathcal S_n(A)$, and of the Serre functor $F_{\mathcal S}$ on the objects of the stable monomorphism category $\underline{\mathcal{S}_n(A)}$. In particular, $τ_{\mathcal S}^{2m(n+1)}X\cong X$ for $X\in\mathcal{S}_n(\A(m, t))$; and $F_{\mathcal S}^{m(n+1)}X\cong X$ for $X\in\underline{\mathcal{S}_n(\A(m, t))}$, where $\A(m, t), \ m\ge1, \ t\ge2,$ are the selfinjective Nakayama algebras.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑