Higher ℓ 2-betti numbers of universal quantum groups

Julien Bichon, David Kyed, Sven Raum

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We calculate all ℓ 2-Betti numbers of the universal discrete Kac quantum groups Û + n as well as their half-liberated counterparts Û n.

Original languageEnglish
JournalCanadian Mathematical Bulletin
Volume61
Issue number2
Pages (from-to)225-235
ISSN0008-4395
DOIs
Publication statusPublished - 1. Jun 2018

Keywords

  • Extension
  • Free product formula
  • Free unitary quantum group
  • Half-liberated unitary quantum group
  • ℓ-Betti number

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