Results 21 to 30 of about 206,399 (279)

Fast hash functions and convolution product

open access: yesJournal of Mathematical Cryptology, 2014
We propose a new simple and efficient family of hash functions based on matrix-vector multiplications with a competitive software implementation. The hash design combines a hard mathematical problem based on solving a system of linear equations with ...
Omar Sami, Sabri Houssem
doaj   +1 more source

A Mathematical Presentation of Laurent Schwartz's Distributions [PDF]

open access: yesSurveys in Mathematics and its Applications, 2020
This is a mathematical presentation of Laurent Schwartz's distributions.
Josefina Alvarez
doaj  

Hadamard Product of Certain Multivalent Analytic Functions with Positive Real Parts

open access: yesMathematics, 2022
This paper aims to provide sufficient conditions for starlikeness and convexity of Hadamard product (convolution) of certain multivalent analytic functions with positive real parts.
Abdel Moneim Y. Lashin, Mohamed K. Aouf
doaj   +1 more source

Convolution of Lorentz Invariant Ultradistributions and Field Theory [PDF]

open access: yes, 2003
In this work, a general definition of convolution between two arbitrary four dimensional Lorentz invariant (fdLi) Tempered Ultradistributions is given, in both: Minkowskian and Euclidean Space (Spherically symmetric tempered ultradistributions).
Bollini, C. G., Rocca, M. C.
core   +2 more sources

Multi-Dimensional Definition of Convolution

open access: yesСовременные информационные технологии и IT-образование, 2021
Convolution is an indispensable operation for solving problems from a variety of subject areas: machine learning problems, data analysis, signal processing, image processing filters.
Evgeniy Goncharov
doaj   +1 more source

An obstruction for q-deformation of the convolution product [PDF]

open access: yes, 1996
We consider two independent q-Gaussian random variables X and Y and a function f chosen in such a way that f(X) and X have the same distribution. For 0 < q < 1 we find that at least the fourth moments of X + Y and f(X) + Y are different. We conclude that
Maassen, Hans, van Leeuwen, Hans
core   +4 more sources

On the Connection between Kronecker and Hadamard Convolution Products of Matrices and Some Applications

open access: yesJournal of Inequalities and Applications, 2009
We are concerned with Kronecker and Hadamard convolution products and present some important connections between these two products. Further we establish some attractive inequalities for Hadamard convolution product.
Adem K&#x00131;l&#x00131;&#231;man   +1 more
doaj   +2 more sources

Implementation of (λ, µ)-Convolution Product by Means of Tensordot Operation from Libraries for Tensor Algebra

open access: yesСовременные информационные технологии и IT-образование, 2022
Multidimensional matrix algebra is a successful data model for problems from a variety of subject areas. Many authors have described hardware and software complexes that implement the algebra of multidimensional matrices in its entirety or parallel ...
Evgeniy I. Goncharov
doaj   +1 more source

On the product formula on non-compact Grassmannians [PDF]

open access: yes, 2012
We study the absolute continuity of the convolution $\delta_{e^X}^\natural \star \delta_{e^Y}^\natural$ of two orbital measures on the symmetric space $SO_0(p,q)/SO(p)\timesSO(q)$, $q>p$.
Graczyk, Piotr, Sawyer, Patrice
core   +3 more sources

Convolution of Ultradistributions, Field Theory, Lorentz Invariance and Resonances [PDF]

open access: yes, 2006
In this work, a general definition of convolution between two arbitrary Ultradistributions of Exponential type (UET) is given. The product of two arbitrary UET is defined via the convolution of its corresponding Fourier Transforms.
Bollini, C. G.   +2 more
core   +2 more sources

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