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A Homological Property and Arens Regularity of Locally Compact Quantum Groups
Published online by Cambridge University Press: 20 November 2018
Abstract
We characterize two important notions of amenability and compactness of a locally compact quantum group $\mathbb{G}$ in terms of certain homological properties. For this, we show that $\mathbb{G}$ is character amenable if and only if it is both amenable and co-amenable. We finally apply our results to Arens regularity problems of the quantum group algebra ${{L}^{1}}\left( \mathbb{G} \right)$. In particular, we improve an interesting result by Hu, Neufang, and Ruan.
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- Copyright © Canadian Mathematical Society 2017
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