COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Geometric Group Theory (GGT) Seminar > Stable commutator length on RAAGs

## Stable commutator length on RAAGsAdd to your list(s) Download to your calendar using vCal - Nicolaus Heuer (University of Cambridge)
- Friday 22 January 2021, 13:45-14:45
- Zoom https://maths-cam-ac-uk.zoom.us/j/95208706709.
If you have a question about this talk, please contact . The stable commutator length scl(g) of an element g in a group G measures the least complexity of a surface to “fill” g. Stable commutator length on non-abelian free groups is now fairly well understood but some questions remain open: Which rational numbers arise as scls? What is the distribution of scl for random elements? What is the gap for chains of scl? I will give a partial answer to all of these questions for right-angled Artin groups (RAAGs). If time permits, I will also show that computing scl in RAA Gs is (unlike in free groups) NP-hard. This is joint work with Lvzhou Chen. This talk is part of the Geometric Group Theory (GGT) Seminar series. ## This talk is included in these lists:- All CMS events
- CMS Events
- DPMMS info aggregator
- Geometric Group Theory (GGT) Seminar
- Hanchen DaDaDash
- Interested Talks
- Zoom https://maths-cam-ac-uk.zoom.us/j/95208706709
- bld31
Note that ex-directory lists are not shown. |
## Other listsLife Sciences & Society MARLEN KHUTSIEV IN CAMBRIDGE AND LONDON weedmp3## Other talksThis talk has been cancelled and will be rescheduled for later this year. Title: Considering chromosomal diagnoses in psychiatric cases A thorny question: tinkering to evolve a novel mode of plant stem cell arrest Break-out Groups |