A degree map on unimodular rows
Commutative Algebra
2012-09-27 v2
Abstract
We associate to any endomorphism of the punctured affine space over some field an element in the Witt group of the base field that we call degree. We use this degree to give a counter-example to a question on unimodular rows
Cite
@article{arxiv.1103.4780,
title = {A degree map on unimodular rows},
author = {Jean Fasel},
journal= {arXiv preprint arXiv:1103.4780},
year = {2012}
}
Comments
Final version; J. Ramanujan Math. Soc. 27 (2012), no 1