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arXiv · 1808.05657

Maximal operators and decoupling for $\Lambda(p)$ Cantor measures

Izabella Laba
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Abstract

For $2\leq p<\infty$, $\alpha'>2/p$, and $\delta>0$, we construct Cantor-type measures on $\mathbb{R}$ supported on sets of Hausdorff dimension $\alpha<\alpha'$ for which the associated maximal operator is bounded from $L^p_\delta (\mathbb{R})$ to $L^p(\mathbb{R})$. Maximal theorems for fractal measures on the line were previously obtained by Laba and Pramanik. The result here is weaker in that we are not able to obtain $L^p$ estimates; on the other hand, our approach allows Cantor measures that are self-similar, have arbitrarily low dimension $\alpha>0$, and have no Fourier decay. The proof is based on a decoupling inequality similar to that of Laba and Wang.

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Izabella Laba. 2018-08-16. Maximal operators and decoupling for $\Lambda(p)$ Cantor measures. https://arxiv.org/abs/1808.05657

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