Coordinates of R[x,y]: Constructions and classifications
Rings and Algebras
2012-06-27 v1
Abstract
Let R be a PID. We construct and classify all coordinates of R[x,y] of the form p_2y+Q_2(p_1x+Q_1(y)) with p_1 and p_2 in qt(R) and Q_1 and Q_2 in qt(R)[y]. From this construction (with R=K[z]) we obtain non tame automorphisms s of K[x,y,z] (where K is a field of characteristic 0) such that the sub-group generated by s and the affine automorphisms contains all tame automorphisms.
Keywords
Cite
@article{arxiv.1206.5876,
title = {Coordinates of R[x,y]: Constructions and classifications},
author = {Eric Edo},
journal= {arXiv preprint arXiv:1206.5876},
year = {2012}
}
Comments
20 pages