The zero dual-entropy Möbius disjointness conjecture

From papers

Let ANA\subseteq\mathbb{N}, let 1A1_A be its indicator function, let \AE(A)\AE^*(A) denote the dual entropy of AA, and let μ\mu be the Möbius function. Zero dual-entropy Möbius disjointness conjecture. If \AE(A)=0\AE^*(A)=0, then

limN1Nn=1N1A(n)μ(n)=0.\lim_{N\to\infty}\frac{1}{N}\sum_{n=1}^N1_A(n)\mu(n)=0.

This is proposed as a dual-entropy analogue of the zero-anqie-entropy reformulation of Sarnak's conjecture; the paper presents it as a belief rather than a proved result.

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Sources & referencesView supporting material

Primary source

Weichen Gu and Xiang Li, “Entropic van der Corput's Difference Theorem”, arXiv:2403.05333 (2024).

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