English

Explicit equations for exterior square of the general linear group

Group Theory 2024-05-31 v2 Representation Theory

Abstract

We present several explicit systems of equations defining exterior square of the general linear group as an affine group scheme. Algebraic ingredients of the equations, exterior numbers, are translated into the language of weight diagrams corresponding to Lie groups of type An1A_{n-1} in representation with the highest weight ϖ2\varpi_{2}.

Keywords

Cite

@article{arxiv.1803.05721,
  title  = {Explicit equations for exterior square of the general linear group},
  author = {Roman Lubkov and Ilia Nekrasov},
  journal= {arXiv preprint arXiv:1803.05721},
  year   = {2024}
}

Comments

11 pages, 2 figures. arXiv admin note: text overlap with arXiv:1801.07918