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Fast Numerical Nonlinear Fourier Transforms [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
The nonlinear Fourier transform, which is also known as the forward scattering transform, decomposes a periodic signal into nonlinearly interacting waves.
S. Wahls, H. Poor
semanticscholar   +1 more source

The Fourier Transform on Quantum Euclidean Space [PDF]

open access: yes, 2010
We study Fourier theory on quantum Euclidean space. A modified version of the general definition of the Fourier transform on a quantum space is used and its inverse is constructed.
Coulembier, Kevin
core   +5 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 inputs.
Yu, Qian   +2 more
openaire   +2 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

FNFT: A Software Library for Computing Nonlinear Fourier Transforms

open access: yesJournal of Open Source Software, 2018
The conventional Fourier transform was originally developed in order to solve the heat equation, which is a standard example for a linear evolution equation.
S. Wahls, S. Chimmalgi, P. Prins
semanticscholar   +1 more source

On the Fractional Derivative Duality in Some Transforms

open access: yesMathematics, 2023
Duality is one of the most interesting properties of the Laplace and Fourier transforms associated with the integer-order derivative. Here, we will generalize it for fractional derivatives and extend the results to the Mellin, Z and discrete-time Fourier
Manuel Duarte Ortigueira   +1 more
doaj   +1 more source

Fourier transforms of orbital integrals on the Lie algebra of $\operatorname{SL}_2$ [PDF]

open access: yes, 2010
The Harish-Chandra--Howe local character expansion expresses the characters of reductive, $p$-adic groups in terms of Fourier transforms of nilpotent orbital integrals on their Lie algebras, and Murnaghan--Kirillov theory expresses many characters of ...
Loren Spice, Loren Spice
core   +1 more source

Fourier transforms of Dini-Lipschitz functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
It is well known that if Lipschitz conditions of a certain order are imposed on a function f(x), then these conditions affect considerably the absolute convergence of the Fourier series and Fourier transforms of f.
M. S. Younis
doaj   +1 more source

Toolbox for the Computation of 2D Fourier Transforms in Polar Coordinates via Maple

open access: yesJournal of Open Research Software, 2015
The Fourier transform is one of the most useful tools in science and engineering and can be expanded to multi-dimensions and curvilinear coordinates. A toolbox of functions for the computation of two dimensional Fourier transforms in polar coordinates ...
Edem Dovlo, Natalie Baddour
doaj   +1 more source

Fractional Fourier Transform [PDF]

open access: yes, 2010
Chapter ...
Ozaktas, Haldun M.   +2 more
openaire   +3 more sources

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