Multiple ergodic theorems for arithmetic sets - Laboratoire d'Analyse et de Mathématiques Appliquées
Article Dans Une Revue Transactions American Mathematical Society Année : 2017

Multiple ergodic theorems for arithmetic sets

Résumé

We establish results with an arithmetic flavor that generalize the polynomial multidimensionalSzemer\'edi theorem and related multiple recurrence and convergence results in ergodic theory. For instance, weshowthat in all these statements we can restrict the implicit parameter $n$ to those integers that havean even number of distinct prime factors, or satisfy any other congruence condition. In order to obtain these refinements we study the limiting behavior of some closely related multiple ergodic averages with weights given by appropriately chosen multiplicative functions. These averages are then analysed using a recent structural result for bounded multiplicative functions proved by the authors.
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Dates et versions

hal-01267077 , version 1 (06-01-2025)

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Nikos Frantzikinakis, Bernard Host. Multiple ergodic theorems for arithmetic sets. Transactions American Mathematical Society, 2017, 369 (10), pp.7085-7105. ⟨10.1090/tran/6870⟩. ⟨hal-01267077⟩
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