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research article
On Recurrence for Zd-Weyl Systems
May 3, 2025
We study the topological recurrence phenomenon of actions of locally compact abelian groups on compact metric spaces. In the case of Zd actions, we develop new techniques to analyze Bohr recurrence sets, and show that Bohr recurrence implies recurrence for Zd-Weyl systems. This family encompasses, for example, all Zd-affine nilsystems.