## Bulletin of the Belgian Mathematical Society - Simon Stevin

### A new proof of extreme amenability of the unitary group of the hyperfinite II$_1$ factor

#### Abstract

We provide an alternative proof for the extreme amenability of the unitary group of the hyperfinite II${}_1$-factor von Neumann algebra, endowed with the strong operator topology.

#### Article information

Source
Bull. Belg. Math. Soc. Simon Stevin, Volume 22, Number 5 (2015), 837-841.

Dates
First available in Project Euclid: 17 December 2015

Permanent link to this document
https://projecteuclid.org/euclid.bbms/1450389251

Mathematical Reviews number (MathSciNet)
MR3435085

Zentralblatt MATH identifier
1347.46046

#### Citation

Dowerk, Philip A.; Thom, Andreas. A new proof of extreme amenability of the unitary group of the hyperfinite II$_1$ factor. Bull. Belg. Math. Soc. Simon Stevin 22 (2015), no. 5, 837--841. https://projecteuclid.org/euclid.bbms/1450389251