Doowon Koh

activity

20062023

most citedExtension theorems for the Fourier transform associated with non-degenerate quadratic surfaces in vector spaces over finite fields

14 citations · 68 across the 47 of their papers we have counts for

collaborators

Showing 2019 · math.COShow all

3 papers · 2 filters

math.CO2019

On a theorem of Hegyvári and Hennecart

Dao Nguyen Van Anh, Le Quang Ham, Doowon Koh +2

In this paper, we study growth rate of product of sets in the Heisenberg group over finite fields and the complex numbers. More precisely, we will give improvements and extensions…

math.CO2019★ 4 cited

A new perspective on the distance problem over prime fields

Alex Iosevich, Doowon Koh, Thang Pham

Let $F_{p}$ be a prime field, and $E$ a set in $F_{p}^{2}$ . Let $Δ (E) = {∣∣ x - y ∣∣ : x, y \in E}$ , the distance set of $E$ . In…

math.CO2019

Distribution of determinant of sum of matrices

Daewoong Cheong, Doowon Koh, Thang Pham +1

Let $F_{q}$ be an arbitrary finite field of order $q$ . In this article, we study $det S$ for certain types of subsets $S$ in the ring $M_{2} (F_{q})$ of $2 \times 2$ matr…