English

On the number of rational points of classifying stacks for Chevalley group schemes

Algebraic Geometry 2020-06-23 v3 Algebraic Topology Representation Theory

Abstract

We compute the number of rational points of classifying stacks of Chevalley group schemes using the Lefschetz-Grothendieck trace formula of Behrend for \ell-adic cohomology of algebraic stacks. From this we also derive associated zeta functions for these classifying stacks.

Keywords

Cite

@article{arxiv.1910.04231,
  title  = {On the number of rational points of classifying stacks for Chevalley group schemes},
  author = {Scott Balchin and Frank Neumann},
  journal= {arXiv preprint arXiv:1910.04231},
  year   = {2020}
}

Comments

15 pages, comments welcome