English

On Kac's Jordan superalgebra

Rings and Algebras 2018-01-08 v1

Abstract

The group-scheme of automorphisms of the ten-dimensional exceptional Kac's Jordan superalgebra is shown to be isomorphic to the semidirect product of the direct product of two copies of SL2 by the constant group scheme C2. This is used to revisit, extend, and simplify, known results on the classification of the twisted forms of this superalgebra and of its gradings.

Keywords

Cite

@article{arxiv.1701.06798,
  title  = {On Kac's Jordan superalgebra},
  author = {Alejandra S. Cordova-Martinez and Abbas Darehgazani and Alberto Elduque},
  journal= {arXiv preprint arXiv:1701.06798},
  year   = {2018}
}

Comments

7 pages

R2 v1 2026-06-22T17:58:24.636Z