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This work addresses an extension of Fourier-Stieltjes transform of a vector measure defined on compact groups to locally compact groups, by using a group representation induced by a representation of one of its compact subgroups.

Functional Analysis · Mathematics 2022-08-16 Y. I. Akakpo , M. N. Hounkonnou , K. Enakoutsa , V. S. K. Assiamoua

Let $G$ be a locally compact group and $1\leq p<\infty$. A continuous unitary representation $\pi\!: G\to B(\mathcal{H})$ of $G$ is an $L^p$-representation if the matrix coefficient functions $s\mapsto \langle \pi(s)x,x\rangle$ lie in…

Functional Analysis · Mathematics 2014-09-10 Matthew Wiersma

For a locally compact abelian group $G$, J. L. Taylor (1971) gave a complete characterization of invertible elements in the measure algebra $M(G)$. Using the Fourier-Stieltjes transform, this characterization can be carried out in the…

Functional Analysis · Mathematics 2020-05-13 Aasaimani Thamizhazhagan

In this paper, we introduce and study the Fourier transform of functions which are integrable with respect to a vector measure on a compact group (not necessarily abelian). We also study the Fourier transform of vector measures. We also…

Functional Analysis · Mathematics 2019-05-30 Manoj Kumar , N. Shravan Kumar

The Fourier-Stieltjes and Fourier algebras B(G), A(G) for a general locally compact group G, first studied by P. Eymard, have played an important role in harmonic analysis and in the study of operator algebras generated by G. Recently,…

Operator Algebras · Mathematics 2007-05-23 Alan L. T. Paterson

Let h be a real-analytic function in the neighborhood of some compact set K on the plane. We show that for any complex measure on the Euclidean space of a finite total variation without singular components with the Fourier--Stieltjes…

Classical Analysis and ODEs · Mathematics 2021-12-21 Serhii Favorov

We prove that if $\rho: A(H) \to B(G)$ is a homomorphism between the Fourier algebra of a locally compact group $H$ and the Fourier-Stieltjes algebra of a locally compact group $G$ induced by a mixed piecewise affine map $\alpha : G \to H$,…

Functional Analysis · Mathematics 2021-11-12 M. Anoussis , G. K. Eleftherakis , A. Katavolos

The Fourier and Fourier-Stieltjes algebras over locally compact groupoids have been defined in a way that parallels their construction for groups. In this article, we extend the results on surjectivity or lack of surjectivity of the…

Functional Analysis · Mathematics 2024-11-25 Joseph DeGaetani , Mahya Ghandehari

It is a well-known result of Eymard that the Fourier-Stieltjes algebra of a locally compact group $G$ can be identified with the dual of the group $\cs$ $C^{*}(G)$. A corresponding result for a locally compact groupoid $G$ has been…

Operator Algebras · Mathematics 2011-02-03 Alan L. T. Paterson

We extend the theory of Fourier--Stieltjes algebras to the category of twisted actions by \'etale groupoids on arbitrary C*-bundles, generalizing theories constructed previously by B\'{e}dos and Conti for twisted group actions on unital…

Operator Algebras · Mathematics 2025-11-18 Alcides Buss , Bartosz Kwaśniewski , Andrew McKee , Adam Skalski

The induced representation ${\rm Ind}_H^GS$ of a locally compact group $G$ is the unitary representation of the group $G$ associated with unitary representation $S:H\rightarrow U(V)$ of a subgroup $H$ of the group $G$. Our aim is to develop…

Representation Theory · Mathematics 2012-07-03 Alexandre Kosyak

In this paper we prove pointwise and distributional Fourier transform inversion theorems for functions on the real line that are locally of bounded variation, while in a neighbourhood of infinity are Lebesgue integrable or have polynomial…

Classical Analysis and ODEs · Mathematics 2022-03-29 Erik Talvila

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

Inspired by Kalton and Wood's work on group algebras, we describe almost completely contractive algebra homomorphisms from Fourier algebras into Fourier-Stieltjes algebras (endowed with their canonical operator space structure). We also…

Functional Analysis · Mathematics 2021-04-09 Yulia Kuznetsova , Jean Roydor

Let $G$ be an even orthogonal quasi-split group defined over a local non-archimedean field $F$. We describe the subspace of smooth vectors of the minimal representation of $G(F),$ realized on the space of square-integrable functions on a…

Representation Theory · Mathematics 2023-04-28 Nadya Gurevich , David Kazhdan

The Fourier(-Stieltjes) algebras on locally compact groups are important commutative Banach algebras in abstract harmonic analysis. In this paper we introduce a generalization of the above two algebras via twisting with respect to…

Operator Algebras · Mathematics 2025-08-13 Hun Hee Lee , Xiao Xiong

We determine the structure of the weak*-closed $G$-invariant ideals in the Fourier-Stieltjes algebra $B(G)$ of certain groups $G$ by means of a $K$-theoretical obstruction. The groups to which this applies are groups whose only irreducible…

Operator Algebras · Mathematics 2020-05-06 Timo Siebenand

We consider analytic continuations of Fourier transforms and Stieltjes transforms. This enables us to define what we call complex moments for some class of probability measures which do not have moments in the usual sense. There are two…

Probability · Mathematics 2013-12-04 Takahiro Hasebe

Let $G$ be a $p$-adic Lie group with reductive Lie algebra $\mathfrak{g}$. Denote by $D(G)$ the locally analytic distribution algebra of $G$. Orlik-Strauch and Agrawal-Strauch have studied certain exact functors defined on various…

Representation Theory · Mathematics 2022-11-08 Akash Jena

The Fourier coefficients F(t) of a function f on a compact symmetric space U/K are given by integration of f against matrix coefficients of irreducible representations of U. The coefficients depend on a spectral parameter t, which…

Representation Theory · Mathematics 2010-01-24 Gestur Olafsson , Henrik Schlichtkrull
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