On the equivariant $KU_G$ local sphere for finite abelian groups
math.AT2026-05v1license
Abstract
Given a finite abelian group and a Sylow -subgroup , we prove that the -local sphere spectrum is equivalent to the homotopy fixed points of a -complete -module spectrum. Then we compute the -graded homotopy Mackey functors of the -local sphere spectrum. This result generalizes the computation of arXiv:2303.12271 for finite -groups, where is an odd prime. Finally, by comparing the Bousfield classes of and -equivariant Morava -theory, we prove that the -local sphere spectrum is equivalent to a wedge sum of equivariant Morava -theory localized sphere spectra, and describe the -graded homotopy Mackey functors of the -local sphere spectrum.
Comments: 27 pages. Comments welcome
Cite
@article{arxiv.2605.30285,
title = {On the equivariant $KU_G$ local sphere for finite abelian groups},
author = {Yingxin Li},
journal= {arXiv preprint arXiv:2605.30285},
year = {2026}
}