A formula for p-completion by way of the Segal conjecture

Sune Precht Reeh, Tomer M. Schlank, Nathaniel Stapleton

Research output: Contribution to journalArticlepeer-review

Abstract

The Segal conjecture describes stable maps between classifying spaces in terms of (virtual) bisets for the finite groups in question. Along these lines, we give an algebraic formula for the p-completion functor applied to stable maps between classifying spaces purely in terms of fusion data and Burnside modules.

Original languageEnglish
Article number108255
JournalTopology and its Applications
Volume322
DOIs
StatePublished - Dec 1 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

Funding

All three authors would like to thank the Max Planck Institute for Mathematics and the Hausdorff Research Institute for Mathematics for their hospitality and support. While working on this paper the first author was funded by the Independent Research Fund Denmark ( DFF–4002-00224 ) and later on by BGSMath and the María de Maeztu Programme ( MDM–2014-0445 ). The second and third author were jointly supported by the US-Israel Binational Science Foundation under grant 2018389 . The second author was partially supported by the Alon Fellowship and ISF 1588/18 . The third author was partially supported by NSF grant DMS-1906236 and the SFB 1085 Higher Invariants at the University of Regensburg . The first author would like to thank his working group at HIM for being patient listeners to discussions about bisets, I-adic topologies, and p-completions. All three authors would like to thank the Max Planck Institute for Mathematics and the Hausdorff Research Institute for Mathematics for their hospitality and support. While working on this paper the first author was funded by the Independent Research Fund Denmark (DFF–4002-00224) and later on by BGSMath and the María de Maeztu Programme (MDM–2014-0445). The second and third author were jointly supported by the US-Israel Binational Science Foundation under grant 2018389. The second author was partially supported by the Alon Fellowship and ISF 1588/18. The third author was partially supported by NSF grant DMS-1906236 and the SFB 1085 Higher Invariants at the University of Regensburg. The first author would like to thank his working group at HIM for being patient listeners to discussions about bisets, I-adic topologies, and p-completions.

FundersFunder number
Alon FellowshipISF 1588/18
María de Maeztu ProgrammeMDM–2014-0445
National Science Foundation Arctic Social Science ProgramDMS-1906236
United States-Israel Binational Science Foundation2018389
Universität Regensburg
Danmarks Frie ForskningsfondDFF–4002-00224
Max-Planck-Institut für Mathematik in den Naturwissenschaften
Hausdorff Research Institute for Mathematics

    Keywords

    • Burnside ring
    • Fusion systems
    • Segal conjecture
    • Spectra
    • p-completion

    ASJC Scopus subject areas

    • Geometry and Topology

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