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We derive in this article the exact norm in the Grand Lebesgue Spaces (GLS) estimates for Fourier transform acting on the functions defined in the infinite local compact Abelian (LCA) group, compact or discrete.

Functional Analysis · Mathematics 2017-10-10 E. Ostrovsky , L. Sirota

We obtain a characterisation of the Fourier transform on the space of Schwartz-Bruhat functions on locally compact Abelian groups. The result states that any appropriately additive bijection of the Schwartz space onto itself, which…

Functional Analysis · Mathematics 2016-04-27 R. Lakshmi Lavanya

The notion of Fourier transform is among the more important tools in analysis, which has been generalized in abstract harmonic analysis to the level of abelian locally compact groups. The aim of this paper is to further generalize the…

Operator Algebras · Mathematics 2007-08-23 Byung-Jay Kahng

We show that the quantum Fourier transform on finite fields used to solve query problems is a special case of the usual quantum Fourier transform on finite abelian groups. We show that the control/target inversion property holds in general.…

Quantum Physics · Physics 2007-05-23 Massoud Amini

We determine the structure of completely inverse AG**-groupoids modulo semilattices of abelian groups and their involutive, idempotent-fixed automorphisms.

Rings and Algebras · Mathematics 2015-02-24 R. A. R. Monzo

In this paper a sampling theory for unitary invariant subspaces associated to locally compact abelian (LCA) groups is deduced. Working in the LCA group context allows to obtain, in a unified way, sampling results valid for a wide range of…

Functional Analysis · Mathematics 2016-05-16 A. G. Garcia , M. A. Hernandez-Medina , G. Perez-Villalon

The basic theory of semi-measures on locally compact Abelian groups is extended to prove the existence of a generalised Eberlein decomposition into such semi-measures.

Functional Analysis · Mathematics 2021-11-08 Timo Spindeler , Nicolae Strungaru

Inspired 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…

Functional Analysis · Mathematics 2022-08-23 Mateusz Krukowski

By using a coset of closed subgroup, we define a Fourier like transform for locally compact abelian (LCA) topological groups. We studied two wavelet multipliers and Landau-Pollak-Slepian operators on locally compact abelian topological…

Functional Analysis · Mathematics 2023-03-21 Aparajita Dasgupta , Swaraj Paul , Santosh Kumar Nayak

In this work we define operator-valued Fourier transforms for suitable integrable elements with respect to the Plancherel weight of a (not necessarily Abelian) locally compact group. Our main result is a generalized version of the Fourier…

Functional Analysis · Mathematics 2009-03-26 Alcides Buss

The Fourier transform, known in classical analysis, and generalized in abstract harmonic analysis, can also be considered in the theory of locally compact quantum groups. In this note, I discuss some aspects of this more general Fourier…

Rings and Algebras · Mathematics 2007-05-23 A. Van Daele

We construct a version of Fourier transform for a class of non-commutative algebras over abelian varieties which include algebras of twisted differential operators generalizing the previous construction of Laumon (alg-geom/9603004) and of…

Algebraic Geometry · Mathematics 2007-05-23 Alexander Polishchuk , Mitchell Rothstein

By analogy with the real and complex affine groups, whose unitary irreducible representations are used to define the one and two-dimensional continuous wavelet transforms, we study here the quaternionic affine group and construct its…

Mathematical Physics · Physics 2014-09-19 S. Twareque Ali , K. Thirulogasanthar

This paper continues the study of Fourier transforms on finite inverse semigroups, with a focus on Fourier inversion theorems and FFTs for new classes of inverse semigroups. We begin by introducing four inverse semigroup generalizations of…

Group Theory · Mathematics 2013-07-22 Martin E. Malandro

Equivariant T-duality triples of locally compact abelian groups are considered. The motivating example dealing with the group $\R^n$ containing a lattice $\Z^n$ comes with an isomorphism in twisted equivariant K-theory.

Operator Algebras · Mathematics 2010-07-27 Ansgar Schneider

We introduce invertible subalgebras of local operator algebras on lattices. An invertible subalgebra is defined to be one such that every local operator can be locally expressed by elements of the inveritible subalgebra and those of the…

Mathematical Physics · Physics 2023-11-06 Jeongwan Haah

An $L^2$ Fourier restriction argument of Bak and Seeger is abstracted to the setting of locally compact abelian groups. This is used to prove new restriction estimates for varieties lying in modules over local fields or rings of integers…

Classical Analysis and ODEs · Mathematics 2018-01-11 Jonathan Hickman , James Wright

We consider gerenalizated permutation equivalence of Vielenkin system on commutative compact torsion finite exponent groups.

Functional Analysis · Mathematics 2013-06-07 A. Czuron , M. Wojciechowski

An element of a group is called \emph{reversible} if it is conjugate to its inverse. While reversibility in the quaternionic M\"{o}bius group $\mathrm{PSL}(2,\mathbb{H})$ has traditionally been studied using geometric and dynamical methods,…

Geometric Topology · Mathematics 2026-04-01 Krishnendu Gongopadhyay , Tejbir Lohan , Abhishek Mukherjee

We explicitly develop a quaternionic version of the electroweak theory, based on the local gauge group $U(1, q)_{L}\mid U(1, c)_{Y}$. The need of a complex projection for our Lagrangian and the physical significance of the anomalous scalar…

High Energy Physics - Theory · Physics 2008-11-26 Stefano De Leo , Pietro Rotelli
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