Results 41 to 50 of about 137,956 (119)

ON THE FOURTH POWER MEAN OF GENERALIZED TWO-TERM EXPONENTIAL SUMS [PDF]

open access: yesBulletin of the Korean Mathematical Society, 2013
In this paper, we use the elementary method and the theory of complex functions to study the computational problem of the fourth power mean of the generalized two-term exponential sums, and give two exact identities for them.
openaire   +1 more source

Exponential Sums Related to Maass Forms [PDF]

open access: yes, 2015
We estimate short exponential sums weighted by the Fourier coefficients of a Maass form. This requires working out a certain transformation formula for non-linear exponential sums, which is of independent interest.
Jääsaari, Jesse, Vesalainen, Esa V.
core  

Computing Dirichlet character sums to a power-full modulus

open access: yes, 2014
The Postnikov character formula is used to express large portions of a Dirichlet character sum in terms of quadratic exponential sums. The quadratic sums are then computed using an analytic algorithm previously derived by the author.
Hiary, Ghaith A.
core   +1 more source

Short-Interval Averages of Sums of Fourier Coefficients of Cusp Forms

open access: yes, 2016
Let $f$ be a weight $k$ holomorphic cusp form of level one, and let $S_f(n)$ denote the sum of the first $n$ Fourier coefficients of $f$. In analogy with Dirichlet's divisor problem, it is conjectured that $S_f(X) \ll X^{\frac{k-1}{2} + \frac{1}{4 ...
Hulse, Thomas A.   +3 more
core   +1 more source

Aspects of Relativistic Sum Rules

open access: yes, 2004
The status of our understanding of relativistic sum rules is reviewed. The recent development of new theoretical methods for the evaluation of these sum rules offers hope for further advances in this challenging field. These new techniques are described,
Aucar   +43 more
core   +1 more source

Level Spacings for Integrable Quantum Maps in Genus Zero

open access: yes, 2000
We consider the eigenvalue pair correlation problem for certain integrable quantum maps on the 2-sphere. The classical maps are time one maps of Hamiltonian flows of perfect Morse functions.
Zelditch, Steve
core   +1 more source

Scattering a pulse from a chaotic cavity: Transitioning from algebraic to exponential decay

open access: yes, 2008
The ensemble averaged power scattered in and out of lossless chaotic cavities decays as a power law in time for large times. In the case of a pulse with a finite duration, the power scattered from a single realization of a cavity closely tracks the power
C. E. Porter   +5 more
core   +1 more source

The prime geodesic theorem for $\mathrm{PSL}_{2}(\mathbb{Z}[i])$ and spectral exponential sums

open access: yes, 2020
We shall ponder the Prime Geodesic Theorem for the Picard manifold $\mathcal{M} = \mathrm{PSL}_{2}(\mathbb{Z}[i]) \backslash \mathfrak{h}^{3}$, which asks about the asymptotic behaviour of a counting function for the closed geodesics on $\mathcal{M ...
Kaneko, Ikuya
core  

On the generalized exponential sums and their fourth power mean

open access: yesOpen Mathematics
The main purpose of this article is to study the calculating problem of the fourth power mean of the two-term exponential sums and provide an accurate calculating formula for utilizing analytical methods and character sums’ properties. In the meantime, a
Liu Wencong, Ning Shushu
doaj   +1 more source

The hybrid power mean of the generalized Gauss sums and the generalized two-term exponential sums

open access: yesAIMS Mathematics
<abstract><p>This article applied the properties of character sums, quadratic character, and classical Gauss sums to study the calculations of the hybrid power mean of the generalized Gauss sums and the generalized two-term exponential sums. It also provided exact formulas for calculating these hybrid power means.</p></abstract>
Xue Han, Tingting Wang
openaire   +2 more sources

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