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On the arithmetic Kakeya conjecture of Katz and Tao

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arxiv 1712.02108 v1 pith:2TDW7WJK submitted 2017-12-06 math.NT math.CAmath.CO

classification math.NTmath.CAmath.CO
keywords conjecturekakeyaarithmeticfinitekatzadditionbesicovitchbounds
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abstract

The arithmetic Kakeya conjecture, formulated by Katz and Tao in 2002, is a statement about addition of finite sets. It is known to imply a form of the Kakeya conjecture, namely that the upper Minkowski dimension of a Besicovitch set in $\mathbb{R}^n$ is $n$. In this note we discuss this conjecture, giving a number of equivalent forms of it. We show that a natural finite field variant of it does hold. We also give some lower bounds.

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  1. Improved bounds for the Kakeya maximal conjecture in higher dimensions

    math.CA 2019-08 conditional novelty 7.0 of 10

    New multiscale polynomial Wolff axioms lead to Kakeya maximal estimates for p ≥ 1 + O(1/n), improving prior bounds in dimensions n=5 and n≥7.

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