English

Some finiteness results for algebraic groups and unramified cohomology over higher-dimensional fields

Number Theory 2020-02-18 v2 Algebraic Geometry Group Theory

Abstract

We formulate and analyze several finiteness conjectures for linear algebraic groups over higher-dimensional fields. In fact, we prove all of these conjectures for algebraic tori as well as in some other situations. This work relies in an essential way on several finiteness results for unramified cohomology.

Keywords

Cite

@article{arxiv.2002.01520,
  title  = {Some finiteness results for algebraic groups and unramified cohomology over higher-dimensional fields},
  author = {Andrei S. Rapinchuk and Igor A. Rapinchuk},
  journal= {arXiv preprint arXiv:2002.01520},
  year   = {2020}
}

Comments

Besides minor changes in exposition, we have added a new adelic proof of Theorem 1.2. This, in particular, allows us to remove any restrictions on the characteristic of the field