Results 11 to 20 of about 206,399 (279)

Convolution products for hypercomplex Fourier transforms [PDF]

open access: yesJournal of Mathematical Imaging and Vision, 2013
Hypercomplex Fourier transforms are increasingly used in signal processing for the analysis of higher-dimensional signals such as color images. A main stumbling block for further applications, in particular concerning filter design in the Fourier domain,
Bujack, Roxana   +3 more
core   +2 more sources

On the product formula and convolution associated with the index Whittaker transform

open access: yesJournal of Mathematical Analysis and Applications, 2019
We deduce a product formula for the Whittaker $W$ function whose kernel does not depend on the second parameter. Making use of this formula, we define the positivity-preserving convolution operator associated with the index Whittaker transform, which is ...
Guerra, Manuel   +2 more
core   +3 more sources

Homotopy Invariance of Convolution Products [PDF]

open access: yesInternational Mathematics Research Notices, 2020
AbstractThe purpose of this paper is to show that various convolution products are fully homotopical, meaning that they preserve weak equivalences in both variables without any cofibrancy hypothesis. We establish this property for diagrams of simplicial sets indexed by the category of finite sets and injections and for tame $M$-simplicial sets, with $M$
Sagave, S., Sagave, S., Schwede, S.
openaire   +4 more sources

Holomorphic Cohomological Convolution and Hadamard Product [PDF]

open access: yesPublications of the Research Institute for Mathematical Sciences, 2022
In this article we explain the link between Pohlen’s extended Hadamard product and the holomorphic cohomological convolution on \mathbb{C}^* . For this purpose we introduce a generalized Hadamard product, which is defined even if the holomorphic ...
Dubussy, Christophe   +1 more
openaire   +4 more sources

The neutrix convolution product [PDF]

open access: yesIntegral Transforms and Special Functions, 1998
The commutative neutrix convolution product is evaluated for r,s = 0,1,2, …, λ μ ≠ −1, −2, … and λ + μ ≠ 0, ±1, ±2, ….
Brian Fisher   +2 more
openaire   +1 more source

On The Third-Order Complex Differential Inequalities of ξ-Generalized-Hurwitz–Lerch Zeta Functions

open access: yesMathematics, 2020
In the z- domain, differential subordination is a complex technique of geometric function theory based on the idea of differential inequality. It has formulas in terms of the first, second and third derivatives.
Hiba Al-Janaby   +2 more
doaj   +1 more source

A note on product-convolution for generalized subexponential distributions

open access: yesNonlinear Analysis, 2022
In this paper, we consider the stability property of the class of generalized subexponential distributions with respect to product-convolution. Assuming that the primary distribution is in the class of generalized subexponential distributions, we find ...
Dimitrios Konstantinides   +2 more
doaj   +1 more source

On beta-product convolutions [PDF]

open access: yesScandinavian Actuarial Journal, 2013
12 ...
openaire   +2 more sources

Convolution of n-dimensional Tempered Ultradistributions and Field Theory [PDF]

open access: yes, 2003
In this work, a general definition of convolution between two arbitrary Tempered Ultradistributions is given. When one of the Tempered Ultradistributions is rapidly decreasing this definition coincides with the definition of J. Sebastiao e Silva.
Bollini, C. G., Rocca, M. C.
core   +2 more sources

Relationships among transforms, convolutions, and first variations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
In this paper, we establish several interesting relationships involving the Fourier-Feynman transform, the convolution product, and the first variation for functionals F on Wiener space of the form F(x)=f(〈α1,x〉,…,〈αn,x〉),                                 
Jeong Gyoo Kim   +3 more
doaj   +1 more source

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