Results 21 to 30 of about 1,119,199 (236)

Spectral Invariance of $$*$$-Representations of Twisted Convolution Algebras with Applications in Gabor Analysis [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2020
We show spectral invariance for faithful $$*$$ ∗ -representations for a class of twisted convolution algebras.
A. Austad
semanticscholar   +1 more source

Topological convolution algebras

open access: yesJournal of Functional Analysis, 2013
Corrected version, to appear in Journal of Functional ...
Alpay, Daniel, Salomon, Guy
openaire   +3 more sources

Convolution algebra for extended Feller convolution

open access: yesSemigroup Forum, 2020
The paper considers the continuous analogue to the problem of intertwined Markov processes with extended Chapman-Kolmogorov's equation in the form of two distinct continuous state spaces and two homogeneous Markov processes, which models random transitions within a continuum of ``life'' states and from the ``life'' states to a continuum of ``death ...
Wha-Suck Lee, Christiaan Le Roux
openaire   +3 more sources

DERIVATIONS ON CONVOLUTION ALGEBRAS [PDF]

open access: yesBulletin of the Korean Mathematical Society, 2015
Abstract. Inthispaper,weinvestigatederivationsonthenoncommuta-tiveBanachalgebraL ∞0 (ω) ∗ equippedwithanArensproduct. Asamainresult, we prove the Singer-Wermer conjecture for the noncommutativeBanach algebra L ∞0 (ω) ∗ . Wethen show that aderivation on L ∞0 (ω) ∗ iscontinuousifandonlyifitsrestrictiontorad(L ∞0 (ω) ∗ )iscontinuous.
MOHAMMAD JAVAD MEHDIPOUR, ZAHRA SAEEDI
openaire   +1 more source

Abstract structure of partial function $*$-algebras over semi-direct product of locally compact groups [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2015
This article presents a unified approach to the abstract notions of partial convolution and involution in $L^p$-function spaces over semi-direct product of locally compact groups.
Arash Ghaani Farashahi, Ali Kamyabi-Gol
doaj  

Construction of Mikusinski operational calculus based on the convolution algebra of distributions. Methods for solving mathematical physics problems

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
A new justification is given for the Mikusinsky operator calculus entirely based on the convolution algebra of generalized functions $D'_+$ and $D'_-$, as applied to the solution of linear partial differential equations with constant coefficients in the ...
Iosif L Kogan
doaj   +1 more source

Invariant convolution algebras [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1973
Let A be a commutative, semi-simple, convolution measure algebra in the sense of Taylor (6), and let S denote its structure semigroup. In (2) we initiated a study of some of the relationships between the topological structure of A^ (the spectrum of A), the algebraic properties of S, and the way that A lies in M(S).
openaire   +2 more sources

Virasoro Algebra and Wreath Product Convolution [PDF]

open access: yes, 2000
We present a group theoretic construction of the Virasoro algebra in the framework of wreath products. This can be regarded as a counterpart of a geometric construction of Lehn in the theory of Hubert schemes of points on a surface.
I. Frenkel, Weiqiang Wang
semanticscholar   +1 more source

Convolutional kernel function algebra

open access: yesFrontiers in Computer Science, 2022
Many systems for image manipulation, signal analysis, machine learning, and scientific computing make use of discrete convolutional filters that are known before computation begins. These contexts benefit from common sub-expression elimination to reduce the number of calculations required, both multiplications and additions.
Stow, E, Kelly, PHJ
openaire   +4 more sources

A Convolution Theorem Related to Quaternion Linear Canonical Transform

open access: yesAbstract and Applied Analysis, 2019
We introduce the two-dimensional quaternion linear canonical transform (QLCT), which is a generalization of the classical linear canonical transform (LCT) in quaternion algebra setting. Based on the definition of quaternion convolution in the QLCT domain
Mawardi Bahri, Ryuichi Ashino
doaj   +1 more source

Home - About - Disclaimer - Privacy