English

Classification of bilinear maps with radical of codimension 2

Rings and Algebras 2021-01-20 v1

Abstract

Let V{\mathbb V} be an nn-dimensional linear space over an algebraically closed base field. We provide a classification, up to equivalence, of all of the bilinear maps f:V×VVf:{\mathbb V} \times {\mathbb V} \to {\mathbb V} such that dim(rad(f))=n2dim(rad(f)) =n-2. This is equivalent to give a complete classification (up to isomorphism) of all nn-dimensional algebras with annihilator of dimension n2n-2 or, in other words, a classification of the annihilator extensions of all 22-dimensional algebras.

Keywords

Cite

@article{arxiv.1806.07009,
  title  = {Classification of bilinear maps with radical of codimension 2},
  author = {Antonio Jesús Calderón and Amir Fernández Ouaridi and Ivan Kaygorodov},
  journal= {arXiv preprint arXiv:1806.07009},
  year   = {2021}
}