Generic algebras: rational parametrization and normal forms
Abstract
For every algebraically closed field of characteristic different from , we prove the following: (1) Generic finite dimensional (not necessarily associative) -algebras of a fixed dimension, considered up to isomorphism, are parametrized by the values of a tuple of algebraically independent over rational functions in the structure constants. (2) There exists an "algebraic normal form", to which the set of structure constants of every such algebra can be uniquely transformed by means of passing to its new basis, namely: there are two finite systems of nonconstant polynomials on the space of structure constants, and , such that the ideal generated by the set is prime and, for every tuple of structure constants satisfying the property for all , there exists a unique new basis of this algebra in which the tuple of its structure constants satisfies the property for all .
Cite
@article{arxiv.1411.6570,
title = {Generic algebras: rational parametrization and normal forms},
author = {Vladimir L. Popov},
journal= {arXiv preprint arXiv:1411.6570},
year = {2015}
}
Comments
20 pages. Added details on separability in the proof of Theorems 2 and 5