English
Related papers

Related papers: The Kakeya Set Conjecture for $\mathbb{Z}/N\mathbb…

200 papers

We derive Maximal Kakeya estimates for functions over $\mathbb{Z}/N\mathbb{Z}$ proving the Maximal Kakeya conjecture for $\mathbb{Z}/N\mathbb{Z}$ for general $N$ as stated by Hickman and Wright [HW18]. The proof involves using polynomial…

Combinatorics · Mathematics 2022-09-26 Manik Dhar

A Kakeya set $S \subset (\mathbb{Z}/N\mathbb{Z})^n$ is a set containing a line in each direction. We show that, when $N$ is any square-free integer, the size of the smallest Kakeya set in $(\mathbb{Z}/N\mathbb{Z})^n$ is at least…

Combinatorics · Mathematics 2021-12-28 Manik Dhar , Zeev Dvir

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…

Number Theory · Mathematics 2017-12-07 Ben Green , Imre Ruzsa

In this dissertation we define a generalization of Kakeya sets in certain metric spaces. Kakeya sets in Euclidean spaces are sets of zero Lebesgue measure containing a segment of length one in every direction. A famous conjecture, known as…

Classical Analysis and ODEs · Mathematics 2017-03-13 Laura Venieri

Around the early 2000-s, Bourgain, Katz and Tao introduced an arithmetic approach to study Kakeya-type problems. They showed that the Euclidean Kakeya conjecture follows from a natural problem in additive combinatorics, now referred to as…

Combinatorics · Mathematics 2024-11-21 Cosmin Pohoata , Dmitrii Zakharov

A Kakeya set contains a line in each direction. Dvir proved a lower bound on the size of any Kakeya set in a finite field using the polynomial method. We prove analogues of Dvir's result for non-degenerate conics, that is, parabolae and…

Combinatorics · Mathematics 2019-06-05 Audie Warren , Arne Winterhof

We prove that the Kakeya maximal conjecture is equivalent to the $\Omega$-Kakeya maximal conjecture. This completes a recent result in [2] where Keleti and Math{\'e} proved that the Kakeya conjecture is equivalent to the $\Omega$-Kakeya…

Classical Analysis and ODEs · Mathematics 2022-04-05 Anthony Gauvan

A Kakeya set is a compact subset of $\mathbb{R}^n$ that contains a unit line segment pointing in every direction. The Kakeya conjecture asserts that such sets must have Hausdorff and Minkowski dimension $n$. There is a special class of…

Classical Analysis and ODEs · Mathematics 2025-12-09 Hong Wang , Joshua Zahl

Let $A, B$, be finite subsets of an abelian group, and let $G \subset A \times B$ be such that $# A, # B, # \{a+b: (a,b) \in G \} \leq N$. We consider the question of estimating the quantity $# \{a-b: (a,b) \in G \}$. Recently Bourgain…

Combinatorics · Mathematics 2007-05-23 Nets Hawk Katz , Terence Tao

We study a variety of problems about homothets of sets related to the Kakeya conjecture. In particular, we show many of these problems are equivalent to the arithmetic Kakeya conjecture of Katz and Tao. We also provide a proof that the…

Number Theory · Mathematics 2020-11-16 Charlie Cowen-Breen , Elene Karangozishvili , Narmada Varadarajan , Thomas Wang

Let $L$ be a set of lines of an affine space over a field and let $S$ be a set of points with the property that every line of $L$ is incident with at least $N$ points of $S$. Let $D$ be the set of directions of the lines of $L$ considered…

Combinatorics · Mathematics 2016-05-04 Simeon Ball , Aart Blokhuis , Diego Domenzain

We prove that all bounded subsets of $\mathbb{Q}_p^n$ containing a line segment of unit length in every direction have Hausdorff and Minkowski dimension $n$. This is the analogue of the classical Kakeya conjecture with $\mathbb{R}$ replaced…

Number Theory · Mathematics 2021-11-02 Bodan Arsovski

A Besicovitch set is a subset of $\R^d$ that contains a unit line segment in every direction and the famous Kakeya conjecture states that Besicovitch sets should have full dimension. We provide a number of results in support of this…

Classical Analysis and ODEs · Mathematics 2018-04-26 Jonathan M. Fraser , Eric J. Olson , James C. Robinson

Using the polynomial method of Dvir \cite{dvir}, we establish optimal estimates for Kakeya sets and Kakeya maximal functions associated to algebraic varieties $W$ over finite fields $F$. For instance, given an $n-1$-dimensional projective…

Combinatorics · Mathematics 2014-01-14 Jordan Ellenberg , Richard Oberlin , Terence Tao

Here we show some results related with Kakeya conjecture which says that for any integer $n\geq 2$, a set containing line segments in every dimension in $\mathbb{R}^n$ has full Hausdorff dimension as well as box dimension. We proved here…

Classical Analysis and ODEs · Mathematics 2017-04-17 Han Yu

We present a streamlined and simplified proof of the Kakeya set conjecture in $\mathbb{R}^3$.

Classical Analysis and ODEs · Mathematics 2026-01-22 Larry Guth , Hong Wang , Joshua Zahl

Recently, Hong Wang and Joshua Zahl announced a proof of the 3-dimensional Kakeya conjecture. This is a survey article on the proof of Kakeya. We introduce the problem, discuss previous work and some of the difficulties of the problem, and…

Classical Analysis and ODEs · Mathematics 2025-05-13 Larry Guth

We give improved lower bounds on the size of Kakeya and Nikodym sets over $\mathbb{F}_q^3$. We also propose a natural conjecture on the minimum number of points in the union of a not-too-flat set of lines in $\mathbb{F}_q^3$, and show that…

Combinatorics · Mathematics 2019-03-06 Ben Lund , Shubhangi Saraf , Charles Wolf

We prove the discrete analogue of Kakeya conjecture over $\mathbb{R}^n$. This result suggests that a (hypothetically) low dimensional Kakeya set cannot be constructed directly from discrete configurations. We also prove a generalization…

Combinatorics · Mathematics 2014-09-04 Ruixiang Zhang

In the finite field setting, we show that the restriction conjecture associated to any one of a large family of $d=2n+1$ dimensional quadratic surfaces implies the $n+1$ dimensional Kakeya conjecture (Dvir's theorem). This includes the case…

Classical Analysis and ODEs · Mathematics 2016-10-04 Mark Lewko
‹ Prev 1 2 3 10 Next ›