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arXiv · 1510.07008

On Sums of Nearly Affine Cantor Sets

Anton Gorodetski·Scott Northrup
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Abstract

For a compact set $K\subset \mathbb{R}^1$ and a family $\{C_\lambda\}_{\lambda\in J}$ of dynamically defined Cantor sets sufficiently close to affine with $\text{dim}_H\, K+\text{dim}_H\, C_\lambda>1$ for all $\lambda\in J$, under natural technical conditions we prove that the sum $K+C_\lambda$ has positive Lebesgue measure for almost all values of the parameter $\lambda$. 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.

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Anton Gorodetski, Scott Northrup. 2015-10-23. On Sums of Nearly Affine Cantor Sets. https://arxiv.org/abs/1510.07008

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