English

Improved $K_1$-stability for the embedding $D_5$ into $E_6$

Group Theory 2021-07-01 v1

Abstract

This paper is dedicated to the surjective stability of the K1K_1-functor for Chevalley groups for the embedding D5D_5 into E6E_6. This case was already studed by Plotkin. In the present paper, we improve his result by showing that surjective stability holds under a weaker assumption on a ring. Another result of the present paper shows how the K1K_1-stability can help to study overgroups of subsystem subgroups.

Keywords

Cite

@article{arxiv.1912.09325,
  title  = {Improved $K_1$-stability for the embedding $D_5$ into $E_6$},
  author = {Pavel Gvozdevsky},
  journal= {arXiv preprint arXiv:1912.09325},
  year   = {2021}
}

Comments

11 pages, 4 figures, submitted to "Communications in algebra"

R2 v1 2026-06-23T12:51:19.201Z