Results 11 to 20 of about 9,069,692 (293)

ON \(\Lambda\)-CONVERGENCE ALMOST EVERYWHERE OF MULTIPLE TRIGONOMETRIC FOURIER SERIES [PDF]

open access: yesUral Mathematical Journal, 2017
We consider one type of convergence of multiple trigonometric Fourier series intermediate between the convergence over cubes and the \(\lambda \)-convergence for \(\lambda >1\).
Nikolai Yu. Antonov
doaj   +11 more sources

Summation of Multiple Fourier Series in Matrix Weighted -Spaces [PDF]

open access: yesJournal of Mathematics, 2013
This paper is concerned with rectangular summation of multiple Fourier series in matrix weighted -spaces. We introduce a product Muckenhoupt condition for matrix weights and prove that rectangular Fourier partial sums converge in the corresponding ...
Morten Nielsen
doaj   +2 more sources

On the Localization of the Riesz Means of Multiple Fourier Series of Distributions [PDF]

open access: yesAbstract and Applied Analysis, 2011
We study special partial sums of multiple Fourier series of distributions. We obtain sufficient conditions of summation of Riesz means of Fourier expansions of distributions with compact support.
A. A. Rakhimov
doaj   +2 more sources

Fourier-series-based virtual fields method for the identification of 2-D stiffness distributions [PDF]

open access: yes, 2013
The Virtual Fields Method (VFM) is a powerful technique for the calculation of spatial distributions of material properties from experimentally-determined displacement fields.
Ian A. Ashcroft (7125329)   +3 more
core   +7 more sources

Modified Fourier expansions: theory, construction and applications [PDF]

open access: yes, 2010
Modified Fourier expansions present an alternative to more standard algorithms for the approximation of nonperiodic functions in bounded domains. This thesis addresses the theory of such expansions, their effective construction and computation, and ...

core   +2 more sources

MULTIPLE FOURIER SERIES AND FOURIER INTEGRALS WITH NON-SEPARABLE VARIABLES

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020
Background. Integral transforms for functions of several variables are an actively developing area of mathematical analysis. Numerous applications in integral transforms method for solving equations of mathematical physics, in signal processing of ...
O. E. Yaremko   +2 more
doaj   +1 more source

One-Dimensional MUSIC-Type Algorithm for Spherical Microphone Arrays

open access: yesIEEE Access, 2020
Spherical microphone arrays have been widely used in direction-of-arrival (DOA) estimation in recent years. The conventional multiple signal classification method formulated in spherical harmonic domain (SHMUSIC) is computationally expensive ...
Qinghua Huang, Tingwei Chen
doaj   +1 more source

Optimization of the mean-square approximation procedures for iterated Stratonovich stochastic integrals of multiplicities 1 to 3 with respect to components of the multi-dimensional Wiener process based on Multiple Fourier–Legendre series [PDF]

open access: yesMATEC Web of Conferences, 2022
The article is devoted to approximation of iterated Ito and Stratonovich stochastic integrals of multiplicities 1 to 3 by the method of multiple Fourier–Legendre series.
Kuznetsov Dmitriy, Kuznetsov Mikhail
doaj   +1 more source

An Attention Encoder-Decoder Dual Graph Convolutional Network with Time Series Correlation for Multi-Step Traffic Flow Prediction

open access: yesJournal of Advanced Transportation, 2022
Accurate traffic prediction is a powerful factor of intelligent transportation systems to make assisted decisions. However, existing methods are deficient in modeling long series spatio-temporal characteristics. Due to the complex and nonlinear nature of
Shanchun Zhao, Xu Li
doaj   +1 more source

Making Time Series Embeddings More Interpretable in Deep Learning

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2023
With the success of language models in deep learning, multiple new time series embeddings have been proposed. However, the interpretability of those representations is often still lacking compared to word embeddings. This paper tackles this issue, aiming
Leonid Schwenke, Martin Atzmueller
doaj   +1 more source

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