搜索结果: 1-15 共查到“理学 Fourier series”相关记录16条 . 查询时间(0.046 秒)
Summability of Multi-Dimensional Trigonometric Fourier Series
Hardy spaces Hp-atom interpolation Fourier series circular triangu-lar cubic and rectangular summability
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2012/6/30
We consider the summability of one- and multi-dimensional trigonometric Fourier series. The Fej{\'e}r and Riesz summability methods are investigated in detail. Different types of summation and converg...
Pointwise convergence of vector-valued Fourier series
Pointwise convergence vector-valued Fourier series Functional Analysis
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2012/5/24
We prove a vector-valued version of Carleson's theorem: Let Y=[X,H]_t be a complex interpolation space between a UMD space X and a Hilbert space H. For p\in(1,\infty) and f\in L^p(T;Y), the partial su...
Approximation of functions from Lp(w)b by matrix means of their Fourier series
Rate of approximation summability of Fourier series Lipschitz classes
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2012/4/16
We formulate some special conditions for the integrable functions and moduli of continuity. We give the results on rate of approximation of such functions by matrix means of their Fourier series, wher...
Local Property of Absolute Weighted Mean Summability of Fourier Series
Local property Fourier series absolute summability H¨older’s inequality Minkowski’s inequality
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2009/6/16
We obtain a general theorem on a local property of j T jk summability of factored
Fourier series generalizing some previous result due to Rhoades and Savas [5]. Another
result concerning j T jk of F...
Modelling Geophysical Fields in Source Free Regions by Fourier Series and Rectangular Harmonic Analysis
Source Fourier Series Rectangular Harmonic Analysis
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2009/6/15
Modelling Geophysical Fields in Source Free Regions by Fourier Series and Rectangular Harmonic Analysis.
Negative Results Concerning Fourier Series on the Complete Product of $\mathcal{S}_3$
Fourier series Walsh-system Vilenkin systems Representative product systems
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2010/1/22
The aim of this paper is to continue the studies about convergence in -norm of the Fourier series based on representative product systems on the complete product of finite groups. We restrict our atte...
Cesáro Means of $N$-multiple Trigonometric Fourier Series
Trigonometric system Cesáro means Summability
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2008/7/1
Cesáro Means of $N$-multiple Trigonometric Fourier Series.
Localization of Factored Fourier Series
Absolute summability Fourier series Local property
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2008/7/1
Localization of Factored Fourier Series.
Maximal Operators of Fejér Means of Vilenkin-Fourier Series
Fejér Means Maximal Operators Vilenkin-Fourier Series
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2008/6/30
Maximal Operators of Fejér Means of Vilenkin-Fourier Series.
On the Absolute Convergence of Small Gaps Fourier Series of Functions of $\varphi \bigwedge BV $
Functions Small Gaps Fourie Absolute Convergence
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2008/6/27
On the Absolute Convergence of Small Gaps Fourier Series of Functions of $\varphi \bigwedge BV $.
On the Absolute Convergence of Small Gaps Fourier Series of Functions of $\bigwedge BV^{(p)}$
Fourier series with small gaps Absolute convergence of Fourier series p-$bigwedge $-bounded variation
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2008/6/27
On the Absolute Convergence of Small Gaps Fourier Series of Functions of $\bigwedge BV^{(p)}$.
Power-Monotone Sequences and Fourier Series with Positive Coefficients
Fourier series Fourier coefficients modulus of continuity quasi power-monotone sequences
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2008/6/27
M. and S. Izumi [2] and the present author [7] have extended certain theorems of R.P. Boas [1] concerning the Fourier coefficients of functions belonging to the Lipschitz classes. Very recently L. Lei...
Power-monotone sequences and Fourier series with positive coefficients
Fourier series Fourier coefficients Lipschitz classes modulus of continuity cosine and sine series quasi power-monotone sequences
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2008/6/27
J. Németh has extended several basic theorems of R.P. Boas Jr. pertaining to Fourier series with positive coefficients from Lipschitz classes to generalized Lipschitz classes. The goal of the present ...
Some Results on $L^1$ Approximation of the $r$-th Derivate of Fourier Series
$L^1$-approximation Fourier series Sidon-Telyakovskii class Telyakovskii inequality
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2008/6/26
Some Results on $L^1$ Approximation of the $r$-th Derivate of Fourier Series.
CESRO MEANS CONNECTED WITH THE ALLIED SERIES OF A FOURIER SERIES
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2007/12/13
<正> 1.Introduction.It is classical that,if the Fourier series of a function ψ(t) ofbounded variation is (?) sin nt,the sequence (?) is bounded.This resultcannot be improved.“For,the function (?) whose...