Free-by-cyclic groups and trees
51 mins 14 secs,
746.10 MB,
MPEG-4 Video
640x360,
29.97 fps,
44100 Hz,
1.94 Mbits/sec
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About this item
| Description: |
Leininger, C
Friday 23rd June 2017 - 11:30 to 12:30 |
|---|
| Created: | 2017-07-19 16:22 |
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| Collection: | Non-Positive Curvature Group Actions and Cohomology |
| Publisher: | Isaac Newton Institute |
| Copyright: | Leininger, C |
| Language: | eng (English) |
| Distribution: |
World
(downloadable)
|
| Explicit content: | No |
| Aspect Ratio: | 16:9 |
| Screencast: | No |
| Bumper: | UCS Default |
| Trailer: | UCS Default |
| Abstract: | Given a hyperbolic free-by-cyclic group G, I will explain how to assign an action of G on a topological R-tree T_U for certain components U of the BNS invariant. For every element x in U, there is a metric on T_U so that G acts by homotheties and the kernel of x acts by isometries. This is part of ongoing joint work with Spencer Dowdall and Ilya Kapovich. |
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| MPEG-4 Video * | 640x360 | 1.94 Mbits/sec | 746.10 MB | View | Download | |
| WebM | 640x360 | 1.05 Mbits/sec | 406.51 MB | View | Download | |
| iPod Video | 480x270 | 521.76 kbits/sec | 195.79 MB | View | Download | |
| MP3 | 44100 Hz | 249.74 kbits/sec | 93.81 MB | Listen | Download | |
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