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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. The energies of polynomials in two and three variables are…

Number Theory · Mathematics 2019-07-31 Doowon Koh , Mozhgan Mirzaei , Thang Pham , Chun-Yen Shen

For the Hodge--Laplace equation in finite element exterior calculus, we introduce several families of discontinuous Galerkin methods in the extended Galerkin framework. For contractible domains, this framework utilizes seven fields and…

Numerical Analysis · Mathematics 2026-02-24 Qingguo Hong , Yuwen Li , Jinchao Xu

Using the character expansion method, we generalize several well-known integrals over the unitary group to the case where general complex matrices appear in the integrand. These integrals are of interest in the theory of random matrices and…

Mathematical Physics · Physics 2008-11-26 B. Schlittgen , T. Wettig

In this paper, we present a general framework for the derivation of interesting finite combinatorial sums starting with certain classes of polynomial identities. The sums that can be derived involve products of binomial coefficients and…

Combinatorics · Mathematics 2025-04-02 Kunle Adegoke , Robert Frontczak , Karol Gryszka

The partial sums of two quartic basic hypergeometric series are investigated by means of the modified Abel lemma on summation by parts. Several summation and transformation formulae are consequently established.

Classical Analysis and ODEs · Mathematics 2009-04-23 Wenchang Chu , Chenying Wang

In this paper, we give a survey of the known results concerning the tensor rank of the multiplication in finite extensions of finite fields, enriched with some not published recent results as well as analyzes enhancing the qualitative…

Inspired by the works of L. Carlitz and Z.-W. Sun on cyclotomic matrices, in this paper, we investigate certain cyclotomic matrices involving Gauss sums over finite fields, which can be viewed as finite field analogues of certain matrices…

Number Theory · Mathematics 2025-02-24 Hai-Liang Wu , Jie Li , Li-Yuan Wang , Chi Hoi Yip

We prove finite field analogues of integral representations of Appell- Lauricella hypergeometric functions in many variables. We consider certain hypersurfaces having a group action and compute the numbers of rational points associated with…

Number Theory · Mathematics 2023-01-31 Akio Nakagawa

In this paper we obtain further improvement of index bounds for character sums of polynomials over finite fields. We present some examples, which show that our new bound is an improved bound compared to both the Weil bound and the index…

Information Theory · Computer Science 2021-12-14 Yansheng Wu , Yoonjin Lee , Qiang Wang

We show that there are only finitely many finite fields whose members are the sum of an $n$-potent element and a $5$-potent element. Combining this with the algorithmic results provided by S.D. Cohen {\it et al.}, we confirm in the…

Number Theory · Mathematics 2026-01-13 Juncheng Zhou , Peter V. Danchev , Hongfeng Wu

We show that there is significant cancellation in certain exponential sums over small multiplicative subgroups of finite fields, giving an exposition of the arguments by Bourgain and Chang.

Number Theory · Mathematics 2007-06-01 Par Kurlberg

We develop a computational framework for the statistical characterization of Galois characters with finite image, with application to characterizing Galois groups and establishing equivalence of characters of finite images of…

Number Theory · Mathematics 2020-12-22 David Kohel

In this paper we give a refinement of the bound of D. A. Burgess for multiplicative character sums modulo a prime number $q$. This continues a series of previous logarithmic improvements, which are mostly due to H. Iwaniec and E. Kowalski.…

Number Theory · Mathematics 2019-05-09 Bryce Kerr , Igor E. Shparlinski , Kam Hung Yau

Using properties of Gauss and Jacobi sums, we derive explicit formulas for the number of solutions to a diagonal equation of the form $x_1^{2^m}+\dots+x_n^{2^m}=0$ over a finite field of characteristic $p\equiv\pm 3\pmod{8}$. All of the…

Number Theory · Mathematics 2016-05-13 Ioulia N. Baoulina

Several physics-based algorithms for factorizing large number were recently published. A notable recent one by Schleich et al. uses Gauss sums for distinguishing between factors and non-factors. We demonstrate two NMR techniques that…

Quantum Physics · Physics 2009-11-13 T. S. Mahesh , Nageswaran Rajendran , Xinhua Peng , Dieter Suter

A number of new terminating series involving $\sin(n^2/k)$ and $\cos(n^2/k)$ are presented and connected to Gauss quadratic sums. Several new closed forms of generic Gauss quadratic sums are obtained and previously known results are…

Classical Analysis and ODEs · Mathematics 2018-10-23 Michael S. Milgram , Larry Glasser

In this paper, we study several topics on additive decompositions of primitive elemements in finite fields. Also we refine some bounds obtained by Dartyge and S\'{a}rk\"{o}zy and Shparlinski.

Number Theory · Mathematics 2025-03-04 Hai-Liang Wu , Yue-Feng She

In this paper we study the set of rational solutions of equations defined by power sums symmetric polynomials with coefficients in a finite field. We do this by means of applying a methodology which relies on the study of the geometry of…

Number Theory · Mathematics 2020-02-05 Mariana Perez , Melina Privitelli

We prove an explicit version of Burgess' bound on character sums for composite moduli.

Number Theory · Mathematics 2021-04-06 Niraek Jain-Sharma , Tanmay Khale , Mengzhen Liu

We are concerned with the fast simulation of random fields on closed surfaces in $\mathbb{R}^3$ which are generated by the (Whittle-) Mat\'ern class of covariance functions. To this end, we solve the underlying fractional stochastic partial…

Numerical Analysis · Mathematics 2026-05-26 Helmut Harbrecht , Florian Sonderegger , Remo von Rickenbach
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