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Higher ℓ2-Betti Numbers of Universal Quantum Groups
Published online by Cambridge University Press: 20 November 2018
Abstract
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We calculate all ${{\ell }^{2}}$-Betti numbers of the universal discrete Kac quantum groups
$\widehat{\text{U}}_{n}^{+}$ as well as their half-liberated counterparts
$\widehat{\text{U}}_{n}^{*}$.
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