English

On spectra and affine strict polynomial functors

K-Theory and Homology 2022-07-27 v2

Abstract

We compare derived categories of the category of strict polynomial functors over a finite field and the category of ordinary endofunctors on the category of vector spaces. We introduce two intermediate categories: the category of \infty--affine strict polynomial functors and the category of spectra of strict polynomial functors. They provide a conceptual framework for compuational theorems of Franjou--Friedlander--Scorichenko--Suslin and clarify the role of inverting Frobenius morphism in comparing rational and discrete cohomology.

Keywords

Cite

@article{arxiv.1512.09285,
  title  = {On spectra and affine strict polynomial functors},
  author = {Marcin Chałupnik},
  journal= {arXiv preprint arXiv:1512.09285},
  year   = {2022}
}
R2 v1 2026-06-22T12:20:52.983Z