English

On a family of mild functions

Number Theory 2021-08-20 v1 Complex Variables

Abstract

We prove that the function Pα(x)=exp(1xα)P_\alpha(x) = \exp(1-x^{-\alpha}) with α>0\alpha > 0, is 1/α1/\alpha-mild. We apply this result to obtain a uniform 1/α1/\alpha-mild parametrization of the family of curves {xy=ϵ2(x,y)(0,1)2}\{xy = \epsilon^2 \mid (x,y) \in (0,1)^2\} for ϵ(0,1)\epsilon \in (0,1), which does not have a uniform 00-mild parametrization by work of Yomdin. More generally we can parametrize families of power-subanalytic curves. This improves a result of Benjamini and Novikov that gives a 22-mild parametrization.

Keywords

Cite

@article{arxiv.2006.16853,
  title  = {On a family of mild functions},
  author = {Siegfried Van Hille},
  journal= {arXiv preprint arXiv:2006.16853},
  year   = {2021}
}