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math.FA2026

The Stockwell transform on Gelfand pairs and localization operators

Claude G. Dosseh, Mawoussi Todjro, Yaogan Mensah

This paper addresses the extension of the Stockwell transform from locally compact abelian groups to Gelfand pairs. A suitable definition of the Stockwell transform is provided in…

math.FA2026

Spectral Barron spaces of vector-valued functions on compact groups

Yaogan Mensah, Isiaka Aremua

In this article, we study spectral Barron spaces whose elements are Banach space-valued functions on a compact group whose Fourier transforms admit a certain summability property.…

math.FA2026

Spectral Barron spaces arising from quantum harmonic analysis

Yaogan Mensah

In this paper, spectral Barron spaces are defined in the framework of quantum harmonic analysis. Their fundamental properties are studied. These include, among others, their comple…

math.FA2025

On quantum Sobolev spaces consisting of Hilbert-Schmidt operators

Anaté K. Lakmon, Yaogan Mensah

In the present paper, we study quantum Sobolev spaces whose elements are operators of the Hilbert-Schmidt class. We construct these Sobolev spaces from the Fourier transform for op…

math.FA2025

Vector Fourier analysis on compact groups and Assiamoua spaces

Yaogan Mensah

This paper shows how a family of function spaces (coined as Assiamoua spaces) plays a fundamental role in the Fourier analysis of vector-valued functions compact groups. These spac…

math.FA2025

Sobolev spaces of vector-valued functions on compact groups

Yaogan Mensah

This paper deals with a class of Sobolev spaces of vector-valued functions on a compact group. Some Sobolev embedding theorems are proved.