Rational G-spectra for rank 2 toral groups of mixed type

Fuente: arXiv
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Main Author: Greenlees, J. P. C.
Format: Preprint
Published: 2025
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author Greenlees, J. P. C.
author_facet Greenlees, J. P. C.
contents We give an explicit and calculable algebraic model for the block of rational G-spectra on full subgroups when G has identity component a 2-torus T, and component group of order 2 acting non-trivially on H_1(T). The example of particular interest is the normalizer of the maximal torus in U(2), which constitutes one of the most complicated blocks in the analysis of SU(3). This builds on the determination of subgroups up to conjugacy in arXiv 2501.06914
format Preprint
id arxiv_https___arxiv_org_abs_2501_15584
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Rational G-spectra for rank 2 toral groups of mixed type
Greenlees, J. P. C.
Algebraic Topology
55P42, 55P91
We give an explicit and calculable algebraic model for the block of rational G-spectra on full subgroups when G has identity component a 2-torus T, and component group of order 2 acting non-trivially on H_1(T). The example of particular interest is the normalizer of the maximal torus in U(2), which constitutes one of the most complicated blocks in the analysis of SU(3). This builds on the determination of subgroups up to conjugacy in arXiv 2501.06914
title Rational G-spectra for rank 2 toral groups of mixed type
topic Algebraic Topology
55P42, 55P91
url https://arxiv.org/abs/2501.15584