English

Cantor set zeros of one-dimensional Brownian motion minus Cantor function

Probability 2012-07-26 v2

Abstract

It was shown by Antunovi\'{c}, Burdzy, Peres, and Ruscher that a Cantor function added to one-dimensional Brownian motion has zeros in the middle α\alpha-Cantor set, α(0,1)\alpha \in (0,1), with positive probability if and only if α1/2\alpha \neq 1/2. We give a refined picture by considering a generalized version of middle 1/2-Cantor sets. By allowing the middle 1/2 intervals to vary in size around the value 1/2 at each iteration step we will see that there is a big class of generalized Cantor functions such that if these are added to one-dimensional Brownian motion, there are no zeros lying in the corresponding Cantor set almost surely.

Keywords

Cite

@article{arxiv.1203.0753,
  title  = {Cantor set zeros of one-dimensional Brownian motion minus Cantor function},
  author = {Julia Ruscher},
  journal= {arXiv preprint arXiv:1203.0753},
  year   = {2012}
}

Comments

19 pages, improved Theorem 3.3