Formal and finite order equivalences
Complex Variables
2015-02-16 v1 Dynamical Systems
Abstract
We show that two families of germs of real-analytic subsets in are formally equivalent if and only if they are equivalent of any finite order. We further apply the same technique to obtain analogous statements for equivalences of real-analytic self-maps and vector fields under conjugations. On the other hand, we provide an example of two sets of germs of smooth curves that are equivalent of any finite order but not formally equivalent.
Cite
@article{arxiv.0912.1869,
title = {Formal and finite order equivalences},
author = {Dmitri Zaitsev},
journal= {arXiv preprint arXiv:0912.1869},
year = {2015}
}