Results 51 to 60 of about 21,710,590 (82)

Exponential sums and Diophantine problems.

open access: yes, 1999
This work is concerned with the theory of exponential sums and their application to various Diophantine problems. Particular attention is given to exponential sums over smooth numbers, i.e. numbers having no large prime factors.
Parsell, Scott Thomas
core   +4 more sources

Barcelone face au tourisme de masse : « tourismophobie » et vivre ensemble

open access: yesTéoros, 2018
Tourism is becoming a source of wealth for Mediterranean cities that benefit from globalization. Yet the staging and storytelling process of these cities transforms the urban landscape and the uses of public space.
Patrice Ballester
doaj  

Closed form evaluations of some series comprising sums of exponentiated multiples of two-term and three-term Catalan number linear combinations

open access: yes, 2015
Closed form evaluations of some infinite series comprising sums of exponentiated multiples of two-term and three-term Catalan number linear combinations are presented using three contrasting approaches.
Larcombe, Peter J.
core  

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

Some problems on exponential sums [PDF]

open access: yes, 2020
Supervisor: Rupam BarmanThe central theme of this thesis is to study the moments of certain exponential sums, which we primarily capture by some asymptotic formulas.
Bag, Nilanjan
core   +1 more source

Hybrid mean value involving some two-term exponential sums and fourth Gauss sums

open access: yesElectronic Research Archive
Let $ q\ge3 $ be a positive integer. For any integers $ m $, $ n $, $ k $, $ h $, the two-term exponential sums $ C(m, n, k, h; q) $ is defined as $ C(m, n, k, h;q) = \sum\limits_{a = 1}^{q}e\left(\frac{ma^k+na^h}{q}\right) $, where $ k > h\ge 2 $. The main purpose of this paper is to use analytic methods and the properties of classical Gauss sums to ...
Zhefeng Xu, Xiaoying Liu, Luyao Chen
openaire   +2 more sources

One kind two-term exponential sums weighted by third-order character

open access: yesAIMS Mathematics
<abstract><p>We give a correction to the previous paper of S. F. Cao and T. T. Wang (2021). Additionally, provide a conversion formula of the power mean of a certain exponential sums weighted by a Dirichlet character $ \chi_{3} $ and some of its applications.</p></abstract>
Guohui Chen, Wenpeng Zhang
openaire   +2 more sources

Automatic forecasting with a modified exponential smoothing state space framework [PDF]

open access: yes
A new automatic forecasting procedure is proposed based on a recent exponential smoothing framework which incorporates a Box-Cox transformation and ARMA residual corrections.
Alysha M De Livera
core  

Symptom and syndrome analysis of categorial series, logical principles and forms of logic

open access: yes, 2010
The calculation of variables of one metering type by the variables of others metering types as the process leads to the forms of logic which are described by means of the collineation group of the projective geometry.
Gracheva, Polina   +4 more
core  

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