A. V. Le

collaborators

2 papers

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…

math.NT2018

Expansion for the product of matrices in groups

Doowon Koh, Thang Pham, Chun-Yen Shen +1

In this paper, we give strong lower bounds on the size of the sets of products of matrices in some certain groups. More precisely, we prove an analogue of a result due to Chapman a…