On shrinking targets and self-returning points

Maxim Kirsebom, Philipp Kunde, Tomas Persson

Research output: Contribution to journalArticlepeer-review

Abstract

We consider the set Rio of points returning infinitely many times to a sequence of shrinking targets around themselves. Under additional assumptions we improve Boshernitzan’s pioneering result on the speed of recurrence. In the case of the doubling map as well as for some linear maps on the d-dimensional torus, we even obtain a dichotomy condition for Rio to have measure-zero or one. Moreover, we study the set of points eventually always returning and prove an analogue of Boshernitzan’s result in similar generality.

Original languageEnglish
Pages (from-to)1499-1535
Number of pages37
JournalAnnali della Scuola Normale Superiore di Pisa - Classe di Scienze
Volume24
Issue number3
DOIs
Publication statusPublished - 2023

Subject classification (UKÄ)

  • Mathematical Analysis

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