Results 31 to 40 of about 1,119,199 (236)

Algebraic Convolutional Filters on Lie Group Algebras

open access: yesICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023
5 pages, 3 ...
Kumar, Harshat   +2 more
openaire   +2 more sources

An algebra containing the two-sided convolution operators [PDF]

open access: yes, 2008
We present an intrinsically defined algebra of operators containing the right and left invariant Calderon–Zygmund operators on a stratified group. The operators in our algebra are pseudolocal and bounded on L p ( 1 p ∞ ) .
B. Street
semanticscholar   +1 more source

On the product formula and convolution associated with the index Whittaker transform [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2018
We deduce a product formula for the Whittaker function W κ , μ 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
Rúben Sousa, M. Guerra, S. Yakubovich
semanticscholar   +1 more source

Lie groupoid deformations and convolution algebras

open access: yesJournal of Geometry and Physics, 2023
We define a morphism from the deformation complex of a Lie groupoid to the Hochschild complex of its convolution algebra, and show that it maps the class of a geometric deformation to the algebraic class of the induced deformation in Hochschild cohomology.
Bjarne Kosmeijer, Hessel Posthuma
openaire   +4 more sources

A Note on Function Spaces with Fractional Fourier Transforms in Wiener-type Spaces

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2023
The purpose of this paper is to introduce and study a function space A_(α,w)^(B,Y) (R^d ) to be a linear space of functions h∈L_w^1 (R^d ) whose fractional Fourier transforms F_α h belong to the Wiener-type space W(B,Y)(R^d ), where w is a Beurling ...
Erdem Toksoy
doaj   +1 more source

Convolution measure algebras with involution [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
Let S S be a commutative, locally compact semigroup and A A an L L -subalgebra of M ( S ) M(S) . We obtain conditions on A A to ensure that S S is an inverse semigroup, a group, or an idempotent semigroup. We assume an
openaire   +2 more sources

Convolution equation and operators on the euclidean motion group

open access: yesJournal of Nigerian Society of Physical Sciences
Let $G = \mathbb{R}^2\rtimes SO(2)$  be the Euclidean motion group, let g be the Lie algebra of G and let U(g) be the universal enveloping algebra of g.
U. N. Bassey, U. E. Edeke
doaj   +1 more source

Weighted Convolution for Quaternion Linear Canonical Cosine Transform and Its Application

open access: yesAxioms
Convolution plays a pivotal role in the domains of signal processing and optics. This paper primarily focuses on studying the weighted convolution for quaternion linear canonical cosine transform (QLCcT) and its application in multiplicative filter ...
Rongbo Wang, Qiang Feng
doaj   +1 more source

Dendriform structures for restriction-deletion and restriction-contraction matroid Hopf algebras [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2016
We endow the set of isomorphism classes of matroids with a new Hopf algebra structure, in which the coproduct is implemented via the combinatorial operations of restriction and deletion.
Nguyen Hoang-Nghia   +2 more
doaj   +1 more source

Convolution Theorems for Quaternion Fourier Transform: Properties and Applications

open access: yesAbstract and Applied Analysis, 2013
General convolution theorems for two-dimensional quaternion Fourier transforms (QFTs) are presented. It is shown that these theorems are valid not only for real-valued functions but also for quaternion-valued functions. We describe some useful properties
Mawardi Bahri   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy