English

On Sums of Nearly Affine Cantor Sets

Dynamical Systems 2015-10-26 v1 Classical Analysis and ODEs

Abstract

For a compact set KR1K\subset \mathbb{R}^1 and a family {Cλ}λJ\{C_\lambda\}_{\lambda\in J} of dynamically defined Cantor sets sufficiently close to affine with dimHK+dimHCλ>1\text{dim}_H\, K+\text{dim}_H\, C_\lambda>1 for all λJ\lambda\in J, under natural technical conditions we prove that the sum K+CλK+C_\lambda has positive Lebesgue measure for almost all values of the parameter λ\lambda. As a corollary, we show that generically the sum of two affine Cantor sets has positive Lebesgue measure provided the sum of their Hausdorff dimensions is greater than one.

Keywords

Cite

@article{arxiv.1510.07008,
  title  = {On Sums of Nearly Affine Cantor Sets},
  author = {Anton Gorodetski and Scott Northrup},
  journal= {arXiv preprint arXiv:1510.07008},
  year   = {2015}
}

Comments

15 pages, 1 figure