D Koh, CY Shen - Journal of Number Theory, 2012 - Elsevier
In this paper we study the generalized Erdős–Falconer distance problems in the finite field setting. The generalized distances are defined in terms of polynomials, and various formulas …
D Koh, S Lee, T Pham - International Mathematics Research …, 2022 - academic.oup.com
The first purpose of this paper is to solve completely the finite field cone restriction conjecture in four dimensions with non-square. The second is to introduce a new approach …
P Bhowmick, A Iosevich, D Koh, T Pham - arXiv preprint arXiv:2301.00463, 2023 - arxiv.org
The purpose of this paper is to introduce and study the following graph theoretic paradigm. Let $$ T_Kf (x)=\int K (x, y) f (y) d\mu (y), $$ where $ f: X\to {\Bbb R} $, $ X $ a set, finite or …
We study L^p→L^r estimates for restricted averaging operators related to algebraic varieties V of d-dimensional vector spaces over finite fields F_q with q elements. We observe …
We study mapping properties of the averaging operator related to the variety V={x∈ 𝔽 qd: Q (x)= 0}, where Q (x) is a nondegenerate quadratic polynomial over a finite field 𝔽 q with q …
D Koh, CY Shen, I Shparlinski - The Journal of Geometric Analysis, 2016 - Springer
In this paper we study the mapping properties of the averaging operator over a variety given by a system of homogeneous equations over a finite field. We obtain optimal results on the …
H Kang, D Koh - Journal of Mathematical Analysis and Applications, 2014 - Elsevier
We study L p− L r restriction estimates for algebraic varieties in d-dimensional vector spaces over finite fields. Unlike the Euclidean case, if the dimension d is even, then it is conjectured …
D Koh - Journal of the Chungcheong Mathematical Society, 2015 - jcmssubmit.ccms.or.kr
Let Fd q be a d-dimensional vector space over a finite field Fq with q elements. We endow the space Fd q with a normalized counting measure dx. Let σ be a normalized surface …