arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.05930math.RT
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滑翔机表示的范畴框架

A categorical framework for glider representations

Ruben Henrard, Adam-Christiaan van Roosmalen

摘要:

片段和滑翔机表示(介绍F。Caenepeel,S. Nawal和F. Van Oystaeyen)给出了滤环上滤模的一个推广。给定一个$Γ$ -滤环$FR$和一个子集$Λ\subseteq Γ$,我们给出了一个滑翔机表示范畴$\operatorname{Glid}_ΛFR$,并证明了它是一个完备且上完备的紧缩拟阿贝尔范畴.我们讨论了它的派生范畴,自然滑翔机和诺特滑翔机的子范畴。若$R$是域$k$上的双代数,$FR$是双代数的滤子,我们证明了$\operatorname{Glid}_ΛFR$是一个monoidal范畴,它等价于一个半Hopf范畴(在E.巴蒂斯塔,S. Caenepeel和J. Vercruysse)。我们表明,monoidal类别的滑翔机表示相关联的一步过滤$k \cdot 1 \subseteq R$的双代数$R$是足够的恢复双代数$R$通过恢复通常的纤维函子从$\operatorname{Glid}_ΛFR.$当应用到一个组代数$kG$,这表明monoidal类别$\operatorname{Glid}_ΛF(kG)$单独是足以区分甚至isotocularical组。

英文摘要:

Fragment and glider representations (introduced by F. Caenepeel, S. Nawal, and F. Van Oystaeyen) form a generalization of filtered modules over a filtered ring. Given a $Γ$-filtered ring $FR$ and a subset $Λ\subseteq Γ$, we provide a category $\operatorname{Glid}_ΛFR$ of glider representations, and show that it is a complete and cocomplete deflation quasi-abelian category. We discuss its derived category, and its subcategories of natural gliders and Noetherian gliders. If $R$ is a bialgebra over a field $k$ and $FR$ is a filtration by bialgebras, we show that $\operatorname{Glid}_ΛFR$ is a monoidal category which is derived equivalent to the category of representations of a semi-Hopf category (in the sense of E. Batista, S. Caenepeel, and J. Vercruysse). We show that the monoidal category of glider representations associated to the one-step filtration $k \cdot 1 \subseteq R$ of a bialgebra $R$ is sufficient to recover the bialgebra $R$ by recovering the usual fiber functor from $\operatorname{Glid}_ΛFR.$ When applied to a group algebra $kG$, this shows that the monoidal category $\operatorname{Glid}_ΛF(kG)$ alone is sufficient to distinguish even isocategorical groups.

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