|Thursday 24 September 2020|
|Events for day: Wednesday 23 September 2020|
| 14:00 - 15:00 Combinatorics and Computing Webinars |
Separation of Quantum, Spatial Quantum, and Approximate Quantum Correlations
15:30 - 17:30 Mathtematical Logic Weekly Seminar
Stability in a Group
In 2013, Ben Yaacov showed that Shelah's result on definability of local types for stable formulas can be seen as a corollary of Grothendieck's "double-limit" theorem, which characterizes relatively weakly compact sets in certain Banach spaces. Moreover, this theorem applies equally well to continuous logic, and is also valid for formulas that are only stable with respect to a fixed model. In this talk, we examine how this connection applies to stable group theory. We develop the foundations of stable group theory directly from topological dynamics and, in particular, results of Ellis and Nerurkar on weakly almost periodic flows (which are ba ...