English

A completely integrable system on $G_2$ coadjoint orbits

Symplectic Geometry 2022-11-03 v4

Abstract

We construct a Gelfand-Zeitlin system on a one-parameter family of G2G_2 coadjoint orbits that are multiplicity-free Hamiltonian SU(3)SU(3)-spaces. Using this system we prove a lower bound for the Gromov width of these orbits. This lower bound agrees with the known upper bound.

Keywords

Cite

@article{arxiv.1605.01676,
  title  = {A completely integrable system on $G_2$ coadjoint orbits},
  author = {Jeremy Lane},
  journal= {arXiv preprint arXiv:1605.01676},
  year   = {2022}
}

Comments

although the concept and results are correct, the work has technical flaws which i do not have time to correct

R2 v1 2026-06-22T13:54:06.996Z