We prove that amenability of a unitary co-representation U of a locally compact quantum group passes to unitary co-representations that weakly contain U. This generalizes a result of Bekka, and answers affirmatively a question of Bédos, Conti and Tuset. As a corollary, we extend to locally compact quantum groups a result of the first-named author, which characterizes amenability of a locally compact group G by nuclearity of the reduced group C∗-Algebra Cr∗(G) and an additional condition.
|Number of pages||8|
|Journal||Bulletin of the London Mathematical Society|
|State||Published - Jun 2017|
Bibliographical noteFunding Information:
The firstnamed author is partially supported by the National Natural Science Foundation of China (11471168)
© 2017 London Mathematical Society.
- 20G42 (primary)
- 46L89 (secondary)
ASJC Scopus subject areas
- Mathematics (all)