Results 11 to 20 of about 1,139,003 (330)

On the Clifford-Fourier transform [PDF]

open access: yesInternational Mathematics Research Notices, 2010
For functions that take values in the Clifford algebra, we study the Clifford-Fourier transform on $R^m$ defined with a kernel function $K(x,y) := e^{\frac{i \pi}{2} \Gamma_{y}}e^{-i }$, replacing the kernel $e^{i }$ of the ordinary Fourier transform ...
Bie, Hendrik De, Yuan Xu
core   +6 more sources

On Katugampola Fourier Transform [PDF]

open access: yesJournal of Mathematics, 2019
The aim of this article is to introduce a new definition for the Fourier transform. This new definition will be considered as one of the generalizations of the usual (classical) Fourier transform.
Tariq O. Salim   +2 more
doaj   +3 more sources

Coded Fourier Transform

open access: yes2017 55th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2017
We consider the problem of computing the Fourier transform of high-dimensional vectors, distributedly over a cluster of machines consisting of a master node and multiple worker nodes, where the worker nodes can only store and process a fraction of the ...
Avestimehr, A. Salman   +2 more
core   +2 more sources

The cylindrical Fourier transform [PDF]

open access: yes, 2010
In this paper we devise a so-called cylindrical Fourier transform within the Clifford analysis context. The idea is the following: for a fixed vector in the image space the level surfaces of the traditional Fourier kernel are planes perpendicular to that
A. Erdélyi   +5 more
core   +3 more sources

The Chromatic Fourier Transform [PDF]

open access: yesForum of Mathematics, Pi
We develop a general theory of higher semiadditive Fourier transforms that includes both the classical discrete Fourier transform for finite abelian groups at height $n=0$ , as well as a certain duality for the $E_n$ -(co)homology of $\pi
Tobias Barthel   +3 more
doaj   +6 more sources

On Fourier transforms [PDF]

open access: yesTransactions of the American Mathematical Society, 1974
If f ( x ) f(x) and g ( x ) g(x) satisfy the equations \[ g ( x ) = d d x ∫ 0 ∞ 1 t ...
openaire   +1 more source

Frequency chirped Fourier-Transform spectroscopy

open access: yesCommunications Physics, 2023
Fast and high-resolution Fourier transform spectrometers are indispensable for cutting-edge infrared spectroscopy. In this study, the authors employed a newly-designed fast-rotating retroreflective, broadband delay line demonstrating fast dual-comb ...
Sergej Markmann   +8 more
doaj   +1 more source

Clifford algebras, Fourier transforms and quantum mechanics [PDF]

open access: yes, 2012
In this review, an overview is given of several recent generalizations of the Fourier transform, related to either the Lie algebra sl_2 or the Lie superalgebra osp(1|2).
De Bie, Hendrik
core   +2 more sources

Low Complexity Keystone Transform and Radon Fourier Transform Utilizing Chirp-Z Transform

open access: yesIEEE Access, 2020
Keystone Transform (KT) and Radon Fourier Transform (RFT) are two popular methods proposed to overcome range migration in radars. A major concern in these methods is the computational complexity for real time operations.
Onur Culha, Yalcin Tanik
doaj   +1 more source

A Didactic and Visual Approach to the Fourier Transform

open access: yesRevista Brasileira de Ensino de Física, 2023
This work provides a comprehensive derivation of the Fourier transform, with less emphasis on the mathematical rigor associated with the theory. Instead, its primary goal is to serve as a didactic resource that fosters an understanding of various ...
Daniel José Kmita   +1 more
doaj   +1 more source

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