arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.11078math.AT
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同伦上同调中加法幂运算

Additive power operations in equivariant cohomology

University of Kentucky(肯塔基大学)

Peter J. Bonventre, Bertrand J. Guillou, Nathaniel J. Stapleton

AI总结:

本文研究了在同伦上同调中加法幂运算的性质,通过一般定理确定了最小Mackey理想,并给出了球谱、复K-理论和莫拉维E-理论的示例计算。

摘要:

设G为有限群,E为一个H_∞-环G-谱。对于任何G-空间X和正整数m,我们给出了在\underline{E}^0(X×BΣ_m)中的最小Mackey理想\underline{J}的显式描述,使得降维的m次幂运算\underline{E}^0(X)→\underline{E}^0(X×BΣ_m)/\underline{J}是一个Green函子的映射。我们通过在G×Σ_m-Green函子背景下建立的一般定理得出这一结果。该定理也专门用于当E是全局谱中的G_∞-环时,确定适当的理想\underline{J}。我们为球谱、复K-理论和莫拉维E-理论提供了示例计算。

英文摘要:

Let $G$ be a finite group and $E$ be an $H_\infty$-ring $G$-spectrum. For any $G$-space $X$ and positive integer $m$, we give an explicit description of the smallest Mackey ideal $\underline{J}$ in $\underline{E}^0(X\times BΣ_m)$ for which the reduced $m$th power operation $\underline{E}^0(X) \to \underline{E}^0(X \times BΣ_m )/\underline{J}$ is a map of Green functors. We obtain this result as a special case of a general theorem that we establish in the context of $G\timesΣ_m$-Green functors. This theorem also specializes to characterize the appropriate ideal $\underline{J}$ when $E$ is a $G_\infty$-ring in global spectra. We give example computations for the sphere spectrum, complex $K$-theory, and Morava $E$-theory.

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。

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