English

$\textrm{U}(n)$-structures and their induced minimal left ideals

Differential Geometry 2025-11-11 v1

Abstract

In previous work, we associated to SU(3)\textrm{SU(3)}, G2\mathrm{G}_2, and Spin(7)\textrm{Spin(7)}-structures minimal left ideals for the Clifford algebras R0,6,R0,7\mathbb{R}_{0,6},\mathbb{R}_{0,7}, and R0,8\mathbb{R}_{0,8}, respectively. In this paper, we continue to analyze the link between Berger's classification theorem and the structure theorem of minimal left ideals for Clifford algebras of signature (p,q)(p,q) by identifying U(n)\mathrm{U}(n)-structures with minimal left ideals for Clifford algebras of various signatures via the induced Kahler polynomial P(ω0)P(\omega_{0}) associated with the symplectic form ω0\omega_{0} that defines the U(n)\mathrm{U}(n)-structure as a stabilizer subgroup of O(n)\mathrm{O}(n).

Cite

@article{arxiv.2511.06900,
  title  = {$\textrm{U}(n)$-structures and their induced minimal left ideals},
  author = {Ricardo Suárez},
  journal= {arXiv preprint arXiv:2511.06900},
  year   = {2025}
}
R2 v1 2026-07-01T07:29:16.248Z