English

Some results on Euler class groups

Commutative Algebra 2010-06-16 v1

Abstract

Let A be a regular domain of dimension d containing an infinite field and let n be an integer with 2n\geq d+3. For a stably free A-module P of rank n, we prove that (i) P has a unimodular element if and only if the euler class of P is zero in E^n(A) and (ii) we define Whitney class homomorphism w(P):E^s(A)\ra E^{n+s}(A), where E^s(A) denotes the sth Euler class group of A for s\geq 1.

Keywords

Cite

@article{arxiv.1006.2952,
  title  = {Some results on Euler class groups},
  author = {Manoj K Keshari},
  journal= {arXiv preprint arXiv:1006.2952},
  year   = {2010}
}
R2 v1 2026-06-21T15:36:24.640Z