L. Q. Hung

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3 papers · 1 filter

math.CO2025

Restricted projections in positive characteristic via Fourier extension and restriction estimates

Le Quang Ham, Do Trong Hoang, Le Quang Hung +2

Let $d \geq 3$ and $F_{q}^{d}$ be the $d$ -dimensional vector space over a finite field of order $q$ , where $q$ is an odd prime power. Let $X_{π}$ be the set of lines through th…

math.CO2025

Sets preserved by a large subgroup of the special linear group

Le Quang Hung, Thang Pham, Kaloyan Slavov

Let $E$ be a subset of the affine plane over a finite field $F_{q}$ . We bound the size of the subgroup of $S L_{2} (F_{q})$ that preserves $E$ . As a consequence, we show…

math.CO2024

Packing sets under finite groups via algebraic incidence structures

Norbert Hegyvári, Le Quang Hung, Alex Iosevich +1

Let $G$ be a finite group acting on a vector space $V = F_{p}^{n}$ over a prime field. Given finite sets $S \subset G$ and $E \subset V$ , we study the restricted orbit union $…