English

Enhanced adjoint action and their orbits for the general linear group

Representation Theory 2019-02-13 v1 Algebraic Geometry

Abstract

We studied an enhanced adjoint action of the general linear group on a product of its Lie algebra and a vector space consisting of several copies of defining representations and its duals. We determined regular semisimple orbits (i.e., closed orbits of maximal dimension) and the structure of enhanced null cone, including its irreducible components and their dimensions.

Keywords

Cite

@article{arxiv.1703.08641,
  title  = {Enhanced adjoint action and their orbits for the general linear group},
  author = {Kyo Nishiyama and Takuya Ohta},
  journal= {arXiv preprint arXiv:1703.08641},
  year   = {2019}
}

Comments

13 pages

R2 v1 2026-06-22T18:56:38.109Z