arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.02727math.RTmath.AC
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初等超群概型的秩簇与$π$ -点

Rank varieties and $π$-points for elementary supergroup schemes

Dave Benson, Srikanth B. Iyengar, Henning Krause, Julia Pevtsova

摘要:

我们开发了一个支持理论的基本超群计划,在一个领域的积极特征$p\ge 3$,开始与一个$π$点广义循环移位的卡尔森基本阿贝尔群和$π$点Friedlander和Pevtsova有限群计划的定义。这些是根据分次代数$k[t,τ]/(t^p-τ^2)$的映射定义的,其中$t$有偶数度,$τ$有奇数度。证明了该理论的强度通过分类奇偶变化不变局部化的基本超群计划的稳定模块类别的子类别。

英文摘要:

We develop a support theory for elementary supergroup schemes, over a field of positive characteristic $p\ge 3$, starting with a definition of a $π$-point generalising cyclic shifted subgroups of Carlson for elementary abelian groups and $π$-points of Friedlander and Pevtsova for finite group schemes. These are defined in terms of maps from the graded algebra $k[t,τ]/(t^p-τ^2)$, where $t$ has even degree and $τ$ has odd degree. The strength of the theory is demonstrated by classifying the parity change invariant localising subcategories of the stable module category of an elementary supergroup scheme.

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