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math.DS2024
Topological groups with tractable minimal dynamics
Gianluca Basso, Andy Zucker
A Polish group has the generic point property if any minimal -flow admits a comeager orbit, or equivalently if the universal minimal flow (UMF) does. The class $\mathsf{GPP}…
math.DS2024
Ultracoproducts and weak containment for flows of topological groups
Andy Zucker
We develop the theory of ultracoproducts and weak containment for flows of arbitrary topological groups. This provides a nice complement to corresponding theories for p.m.p. action…