English

Motivic Tambara Functors

K-Theory and Homology 2022-01-12 v2 Algebraic Topology

Abstract

Let k be a field and denote by SH(k) the motivic stable homotopy category. Recall its full subcategory HI_0(k) of effective homotopy modules. Write NAlg(HI_0(k)) for the category of normed motivic spectra with underlying spectrum an effective homotopy module. In this article we provide an explicit description of NAlg(HI_0(k)) as the category of sheaves with generalized transfers and \'etale norms, and explain how this is closely related to the classical notion of Tambara functors.

Keywords

Cite

@article{arxiv.1807.02981,
  title  = {Motivic Tambara Functors},
  author = {Tom Bachmann},
  journal= {arXiv preprint arXiv:1807.02981},
  year   = {2022}
}

Comments

v2: version accepted for publication. 20 pages; comments always welcome

R2 v1 2026-06-23T02:54:28.641Z