A[Sl_q(2)] at roots of unity is a free module over A[Sl(2)]
Quantum Algebra
2012-04-19 v5
Abstract
It is shown that when q is a primitive root of unity of order not equal to 2 mod 4, A(SL_q(2)) is a free module of finite rank over the coordinate ring of the classical group SL(2). An explicit set of generators is provided.
Cite
@article{arxiv.math/0004092,
title = {A[Sl_q(2)] at roots of unity is a free module over A[Sl(2)]},
author = {Ludwik Dabrowski and Cesare Reina and Alessandro Zampa},
journal= {arXiv preprint arXiv:math/0004092},
year = {2012}
}
Comments
tex, 5 pages, final version accepted for publication on Lett. Math. Phys