Beurling-Fourier algebras on Lie groups and their spectra
Journal article, 2021

We investigate Beurling-Fourier algebras, a weighted version of Fourier algebras, on various Lie groups focusing on their spectral analysis. We will introduce a refined general definition of weights on the dual of locally compact groups and their associated Beurling-Fourier algebras. Constructions of nontrivial weights will be presented focusing on the cases of representative examples of Lie groups, namely SU(n), the Heisenberg group H, the reduced Heisenberg group Hr, the Euclidean motion group E(2) and its simply connected cover E˜(2). We will determine the spectrum of Beurling-Fourier algebras on each of the aforementioned groups emphasizing its connection to the complexification of underlying Lie groups. We also demonstrate that “polynomially growing” weights do not change the spectrum and show the associated regularity of the resulting Beurling-Fourier algebras.

Gelfand spectrum

Beurling algebra

Fourier algebra

Operator algebra

Complexification of Lie groups

Author

Mahya Ghandehari

University of Delaware

Hun Hee Lee

Seoul National University

J. Ludwig

University of Lorraine

Nico Spronk

University of Waterloo

Lyudmyla Turowska

Chalmers, Mathematical Sciences, Analysis and Probability Theory

Advances in Mathematics

0001-8708 (ISSN) 1090-2082 (eISSN)

Vol. 391 107951

Subject Categories

Algebra and Logic

Geometry

Mathematical Analysis

DOI

10.1016/j.aim.2021.107951

More information

Latest update

8/26/2021