On the p-primary subgroups of the cohomology of the classifying spaces of PUn

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Hauptverfasser: Zhang, Zhilei, Zhong, Linan
Format: Preprint
Veröffentlicht: 2024
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author Zhang, Zhilei
Zhong, Linan
author_facet Zhang, Zhilei
Zhong, Linan
contents Let $PU_n$ denote the projective unitary group of rank $n$, and let $BPU_n$ be its classifying space. We extend our previous results to a description of $H^s(BPU_n;\mathbb{Z})_{(p)}$ for $s<2p+9$ by showing that $p$-primary subgroups of $H^s(BPU_n;\mathbb{Z})$ is $\mathbb{Z}/p$ for $s=2p+5$ and are trivial for $s = 2p+7$ and $s = 2p+8$, where $p$ is an odd prime.
format Preprint
id arxiv_https___arxiv_org_abs_2402_09103
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the p-primary subgroups of the cohomology of the classifying spaces of PUn
Zhang, Zhilei
Zhong, Linan
Algebraic Topology
Let $PU_n$ denote the projective unitary group of rank $n$, and let $BPU_n$ be its classifying space. We extend our previous results to a description of $H^s(BPU_n;\mathbb{Z})_{(p)}$ for $s<2p+9$ by showing that $p$-primary subgroups of $H^s(BPU_n;\mathbb{Z})$ is $\mathbb{Z}/p$ for $s=2p+5$ and are trivial for $s = 2p+7$ and $s = 2p+8$, where $p$ is an odd prime.
title On the p-primary subgroups of the cohomology of the classifying spaces of PUn
topic Algebraic Topology
url https://arxiv.org/abs/2402.09103