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On Heilbronn's exponential sum [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2012
In the paper we prove a new upper bound for Heilbronn's exponential sum and obtain some applications of our result to distribution of Fermat quotients.Comment: 10 ...
Shkredov, Ilya D.
core   +3 more sources

On the Application of a Hybrid Incomplete Exponential Sum to Aperiodic Hamming Correlation of Some Frequency-Hopping Sequences [PDF]

open access: yesEntropy
Frequency-hopping sequences are essential in frequency-hopping spread spectrum communication systems due to their strong anti-interference capabilities, low probability of interception, and high confidentiality.
Peihua Li, Hongyu Han
doaj   +2 more sources

On the exponential sum—product problem

open access: yesIndagationes Mathematicae, 2008
Let \(p\) be a large prime and let \(g\) be an element of \(\mathbb F_p\) of a (large) multiplicative order \(T\). Given sets \(\mathcal A, \mathcal B \subset \mathbb Z_T^*\), consider the sets \[ \mathcal U = \{ g^{ab} : a \in \mathcal A, b \in \mathcal B \}, \quad \mathcal V = \{ g^{a} + g^{b} : a \in \mathcal A, b \in \mathcal B \}. \] In this paper,
Igor E Shparlinski
exaly   +3 more sources

Sum of Exponential Model for Fitting Data

open access: yesEngineering Proceedings, 2023
As an approach to feature estimation, exponential fitting has attracted research interests in mathematical modeling. Semantic networks are used for numerous applications in computers, physics, and biology.
Ting-Cheng Chang, Min-Hao Wu, Ying Lin
doaj   +1 more source

Goldbach partitions and norms of cusp forms

open access: yesJournal of Numerical Analysis and Approximation Theory, 2019
An integral formula for the Goldbach partitions requires uniform convergence of a complex exponential sum. The dependence of the coefficients of the series is found to be bounded by that of cusp forms.
Simon Brian Davis
doaj   +7 more sources

Solution of differential equations using sum of exponential functions

open access: yesLietuvos Matematikos Rinkinys, 2004
In this paper algorithm for the expression power series to sum of exponential functions are presented. The results in case of operator solving method for differential equations are applied.
Liepa Bikulčienė, Zenonas Navickas
doaj   +3 more sources

On an Exponential Power Sum

open access: yes, 2023
Using combinatorial techniques, we derive a recurrence identity that expresses an exponential power sum with negative powers in terms of another exponential power sum with positive powers. Consequently, we derive a formula for the power sum of the first $k$ natural numbers when the power is odd, which when used in combination with Faulhaber's formula ...
Thomas, Neha Elizabeth   +1 more
openaire   +3 more sources

Decomposition of exponential sums based on subspace and its application in channel estimation

open access: yesDianxin kexue, 2023
The problem of the decomposition of an exponential sum sequence is a classical mathematical problem.Prony method and Prony-Kung method are the classical methods to solve this problem.The Prony-Kung method was analyzed in detail from the point of view of ...
Zhiwei WU   +4 more
doaj   +2 more sources

Discrete fractional calculus with exponential memory: Propositions, numerical schemes and asymptotic stability

open access: yesNonlinear Analysis, 2023
A new fractional difference with an exponential kernel function is proposed in this study. First, a difference operator is defined by the exponential function.
Guang Yang, Guo-Cheng Wu, Hui Fu
doaj   +3 more sources

Prony-Type Polynomials and Their Common Zeros

open access: yesFrontiers in Applied Mathematics and Statistics, 2020
The problem of hidden periodicity of a bivariate exponential sum f(n)=∑j=1Najexp(-i〈ωj,n〉), where a1, …, aN ∈ ℂ\{0} and n ∈ ℤ2, is to recover frequency vectors ω1,…,ωN∈[0,2π) 2 using finitely many samples of f.
Jürgen Prestin, Hanna Veselovska
doaj   +1 more source

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