02.07.2025, 9:15 - 10:15 Uhr
– 2.09.0.17
Forschungsseminar: Gruppen und Operatoralgebren
Surjunctive Groups
Rico Linke
Tanja Eisner (Leipzig)
Abstract: We discuss a proof of multiple recurrence for ergodic systems (and thereby of Szemerédi's theorem) being a mixture of three known proofs. It is based on a conditional version of the Jacobs-de Leeuw-Glicksberg decomposition and properties of the Gowers-Host-Kra uniformity seminorms.