English

Morava K-theory and Rost invariant

K-Theory and Homology 2023-06-26 v1

Abstract

We prove that inner forms of a variety of Borel subgroups have isomorphic motives with respect to the second Morava K-theory if and only if the corresponding Tits algebras and Rost invariants coincide. This extends Panin's results on interrelationship of K-theory with Tits algebras to the case of cohomological invariants of degree 3.

Keywords

Cite

@article{arxiv.2306.13605,
  title  = {Morava K-theory and Rost invariant},
  author = {Andrei Lavrenov and Victor Petrov},
  journal= {arXiv preprint arXiv:2306.13605},
  year   = {2023}
}
R2 v1 2026-06-28T11:12:57.953Z