English

Virtual representation motives

Representation Theory 2019-04-30 v1 Rings and Algebras

Abstract

Principal GLnGL_n-bundles (aka vector bundles) are locally trivial in the Zariski topology, whereas principal PGLnPGL_n-bundles (aka Azumaya algebras) are not, to the delight of every non-commutative algebraist. Still, this makes the calculation of motives of representation schemes of algebras next to impossible. In very special cases, Brauer-Severi schemes (and their motives) can be used to tackle this problem inductively. We illustrate this in the case of certain superpotential algebras.

Keywords

Cite

@article{arxiv.1904.12536,
  title  = {Virtual representation motives},
  author = {Lieven Le Bruyn},
  journal= {arXiv preprint arXiv:1904.12536},
  year   = {2019}
}
R2 v1 2026-06-23T08:52:00.220Z