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Beurling-Fourier Algebras of Compact Quantum Groups: Characters and Finite-Dimensional Representations
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- Authors
- Issue Date
- 2021
- Publisher
- Indiana University Press
- Citation
- Indiana University Mathematics Journal, Vol.70 No.2, pp.605-637
- Abstract
- In this paper we study weighted versions of Fourier algebras of compact quantum groups. We focus on the spectral aspects of these Banach algebras in two different ways. We first investigate their Gelfand spectrum, which shows a connection to the maximal classical closed subgroup and its complexification. Second, we study specific finite-dimensional representations coming from the complexification of the underlying quantum group. We demonstrate that the weighted Fourier algebras can detect the complexification structure in the special case of SUq(2), whose complexification is the quantum Lorentz group SLq(2, C).
- ISSN
- 0022-2518
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