14 citations · 68 across the 47 of their papers we have counts for
4 papers · 2 filters
Exponential sum estimates over prime fields
Doowon Koh, Mozhgan Mirzaei, Thang Pham +1
In this paper, we prove some extensions of recent results given by Shkredov and Shparlinski on multiple character sums for some general families of polynomials over prime fields. T…
Sum-product estimates over arbitrary finite fields
Doowon Koh, Sujin Lee, Thang Pham +1
In this paper we prove some results on sum-product estimates over arbitrary finite fields. More precisely, we show that for sufficiently small sets we have…
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…
Expanding phenomena over matrix rings
Yeşim Demiroğlu Karabulut, Doowon Koh, Thang Pham +2
In this paper, we study expanding phenomena in the setting of matrix rings. More precisely, we will prove that If is a set of and , then we…