Results 1 to 10 of about 5,018 (278)

Convolution, Correlation and Uncertainty Principle in the One-Dimensional Quaternion Quadratic-Phase Fourier Transform Domain

open access: yesMathematics, 2023
In this paper, we present a novel integral transform known as the one-dimensional quaternion quadratic-phase Fourier transform (1D-QQPFT). We first define the one-dimensional quaternion quadratic-phase Fourier transform (1D-QQPFT) of integrable (and ...
Altaf A. Bhat   +3 more
core   +2 more sources

General convolutions of integral transforms and their application to ode and PDE problems

open access: yesMathematical Modelling and Analysis, 2006
The present research is devoted to some polyconvolutions generated by various integral transforms. For example, we study convolutions of the Hankel transform with the following factorization properties: where Hv[f] (x) is the Hankel transform. Conditions
L. E. Britvina
semanticscholar   +4 more sources

New convolutions for the Hartley integral transform imbedded in the Banach algebras and convolution-type integral equations

open access: yesDemonstratio Mathematica
Abstract This article presents two types of the new convolutions for the Hartley integral transform associated with the Hermite functions, gives rise to the identification of some commutative and non-commutative Banach algebras, and to the Young inequalities which, in a certain sense, can be seen as the exceptional Young inequalities.
Nguyen Minh Tuan
exaly   +4 more sources

A new convolution operator for the linear canonical transform with applications [PDF]

open access: yes, 2021
The linear canonical transform plays an important role in engineering and many applied fields, as it is the case of optics and signal processing. In this paper, a new convolution for the linear canonical transform is proposed and a corresponding ...
Castro, Luís P.   +2 more
core   +1 more source

On spectral Cantor-Moran measures and a variant of Bourgain's sum of sine problem [PDF]

open access: yesAdvances in Mathematics, 2019
In this paper, we show that if we have a sequence of Hadamard triples $\{(N_n,B_n,L_n)\}$ with $B_n\subset \{0,1,..,N_n-1\}$ for $n=1,2,...$, except an extreme case, then the associated Cantor-Moran measure $$ \begin{aligned} \mu = \mu(N_n,B_n ...
Li-Xiang An, Xiaoye Fu, Chun-Kit Lai
semanticscholar   +1 more source

Integral Transforms Characterized by Convolution

open access: yesResults in Mathematics, 2023
AbstractInspired by Jaming’s characterization of the Fourier transform on specific groups via the convolution property, we provide a novel approach which characterizes the Fourier transform on any locally compact abelian group. In particular, our characterization encompasses Jaming’s results.
openaire   +2 more sources

A Phase Field Model for Continuous Clustering on Vector Fields [PDF]

open access: yes, 2001
A new method for the simplification of flow fields is presented. It is based on continuous clustering. A well-known physical clustering model, the Cahn Hilliard model, which describes phase separation, is modified to reflect the properties of the data to
Preusser, T   +23 more
core   +1 more source

Solving singular convolution equations using the inverse fast Fourier transform [PDF]

open access: yes, 2012
summary:The inverse Fast Fourier Transform is a common procedure to solve a convolution equation provided the transfer function has no zeros on the unit circle.
Zizler, Václav   +4 more
core   +1 more source

Integral Transforms of Fourier Cosine and Sine Generalized Convolution Type [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Integral transforms of the formf(x)↦g(x)=(1−d2/dx2){∫0∞k1(y)[f(|x+y−1|)+f(|x−y+1|)−f(x+y+1)−f(|x−y−1|)]dy+∫0∞k2(y)[f(x+y)+f(|x−y|)]dy}fromLp(ℝ+)toLq(ℝ+),(1≤p≤2,p−1+q−1=1)are studied. Watson's and Plancherel's theorems are obtained.
Xuan Thao Nguyen   +2 more
openaire   +2 more sources

Exact Distribution of Random Weighted Convolution of Some Beta Distributions Through an Integral Transform

open access: yes, 2017
We give the exact distribution of the average of n independent beta random variables weighted by the selected cuts of (0; 1) by the order statistics of a random sample of size n−1 from the uniform distribution U(0; 1), for each n.
R. Roozegar, Abouzar Bazyari
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy