On rigidity in II1 factor framework
1 hour 9 mins,
266.35 MB,
iPod Video
480x270,
29.97 fps,
44100 Hz,
527.03 kbits/sec
Share this media item:
Embed this media item:
Embed this media item:
About this item
| Description: |
Popa, S (University of California, Los Angeles)
Monday 23rd January 2017 - 10:00 to 11:00 |
|---|
| Created: | 2017-02-08 13:59 |
|---|---|
| Collection: | Operator algebras: subfactors and their applications |
| Publisher: | Isaac Newton Institute |
| Copyright: | Popa, S |
| Language: | eng (English) |
| Distribution: |
World
(downloadable)
|
| Explicit content: | No |
| Aspect Ratio: | 16:9 |
| Screencast: | No |
| Bumper: | UCS Default |
| Trailer: | UCS Default |
| Abstract: | II1 factors appear naturally from a multitude of data (groups, group actions, operations such as free products, etc).
This leads to two types of rigidity phenomena in this framework: 1. W*-rigidity, aiming at recovering the building data from the isomorphism class of the algebra. 2. Restrictions on the symmetries of the II1 factor (like the index of its subfactors). We will discuss some old and new results in this direction, and the role of deformation-rigidity techniques in obtaining them. |
|---|---|
Available Formats
| Format | Quality | Bitrate | Size | |||
|---|---|---|---|---|---|---|
| MPEG-4 Video | 640x360 | 1.95 Mbits/sec | .99 GB | View | Download | |
| WebM | 640x360 | 815.84 kbits/sec | 412.30 MB | View | Download | |
| iPod Video * | 480x270 | 527.03 kbits/sec | 266.35 MB | View | Download | |
| MP3 | 44100 Hz | 252.36 kbits/sec | 127.54 MB | Listen | Download | |
| Auto | (Allows browser to choose a format it supports) | |||||