$\mathbb{Z}_3\times \mathbb{Z}_3$ crossed products
Rings and Algebras
2014-02-04 v1
Abstract
Let be the generic abelian crossed product with respect to , in this note we show that is similar to the tensor product of 4 symbol algebras (3 of degree 9 and one of degree 3) and if is of exponent it is similar to the product of 31 symbol algebras of degree . We then use \cite{RS} to prove that if is any algebra of degree then is similar to the product of symbol algebras ( of degree and of degree ) and if is of exponent it is similar to the product of symbol algebras of degree . We then show that the essential -dimension of the class of is at most .
Cite
@article{arxiv.1402.0328,
title = {$\mathbb{Z}_3\times \mathbb{Z}_3$ crossed products},
author = {Eliyahu Matzri},
journal= {arXiv preprint arXiv:1402.0328},
year = {2014}
}