English

Generalized electrical Lie algebras

Representation Theory 2025-06-17 v5 Rings and Algebras

Abstract

We generalize the electrical Lie algebras originally introduced by Lam and Pylyavskyy in several ways. To each Kac-Moody Lie algebra g\mathfrak{g} we associate two types (vertex type and edge type) of the generalized electrical algebras. The electrical Lie algebras of vertex type are always subalgebras of g\mathfrak{g} and are flat deformations of the nilpotent Lie subalgebra of g\mathfrak{g}. In many cases including slnsl_n, sonso_n, and sp2nsp_{2n} we find new (edge) models for our generalized electrical Lie algebras of vertex type. Finding an edge model in general is an interesting an open problem.

Keywords

Cite

@article{arxiv.2405.02956,
  title  = {Generalized electrical Lie algebras},
  author = {Arkady Berenstein and Azat Gainutdinov and Vassily Gorbounov},
  journal= {arXiv preprint arXiv:2405.02956},
  year   = {2025}
}

Comments

AmsLaTeX, 19 pages, few more misprints corrected, to appear in Advances

R2 v1 2026-06-28T16:17:13.422Z