English

On realizations of the Lie groups $ G_{2,\boldmath\scriptstyle{H}},F_{4,\boldmath\scriptstyle{H}},E_{6,\boldmath\scriptstyle{H}},E_{7,\boldmath\scriptstyle{H}},E_{8,\boldmath\scriptstyle{H}} $, second edition

Differential Geometry 2021-04-14 v2

Abstract

In order to define the exceptional compact Lie groups G2,F4,E6,E7,E8G_2,F_4,E_6,E_7,E_8, we usually use the Cayley algebra C\mathfrak{C} or its complexification CC\mathfrak{C}^C. In the present article, we consider replacing the Cayley algebra C\mathfrak{C} with the field of quaternion numbers \boldmathH\boldmath{H} in the definition of the groups above, and these groups are denoted as in title above. Our aim is to determine the structure of these groups. We call realization to determine the structure of the groups.

Keywords

Cite

@article{arxiv.2103.03402,
  title  = {On realizations of the Lie groups $ G_{2,\boldmath\scriptstyle{H}},F_{4,\boldmath\scriptstyle{H}},E_{6,\boldmath\scriptstyle{H}},E_{7,\boldmath\scriptstyle{H}},E_{8,\boldmath\scriptstyle{H}} $, second edition},
  author = {Toshikazu Miyashita},
  journal= {arXiv preprint arXiv:2103.03402},
  year   = {2021}
}
R2 v1 2026-06-23T23:46:54.915Z