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math.LO2025
Fixed points on null and tame flows for groups of automorphisms
Alessandro Codenotti
Using a generalization of the Kechris-Pestov-Todorčević correspondence due to Nguyen Van Thé we obtain fixed point theorems for null and tame actions of groups of the form $\mathrm…
math.LO2023
Ranks in Ellis semigroups and model theory
Alessandro Codenotti, Daniel Max Hoffmann
We slightly generalize a notion of rank introduced by Glasner and Megrelishvili, which captures the oscillations of elements of Ellis semigroups, so that it can be applied to any c…
math.LO2022★ 1 cited
Projective Fraïssé limits and generalized Ważewski dendrites
Alessandro Codenotti, Aleksandra Kwiatkowska
We continue the study of projective Fraïssé limits of trees initiated by Charatonik and Roe and we construct many generalized Ważewski dendrites as the topological realization of a…