English

Counterexamples to double recurrence for non-commuting deterministic transformations

Dynamical Systems 2025-07-22 v1

Abstract

We show that if p1,p2p_1,p_2 are injective, integer polynomials that vanish at the origin, such that either both are of degree 11 or both are of degree 22 or higher, then double recurrence fails for non-commuting, mixing, zero entropy transformations. This answers a question of Frantzikinakis and Host completely.

Cite

@article{arxiv.2507.15528,
  title  = {Counterexamples to double recurrence for non-commuting deterministic transformations},
  author = {Zemer Kosloff and Shrey Sanadhya},
  journal= {arXiv preprint arXiv:2507.15528},
  year   = {2025}
}
R2 v1 2026-07-01T04:11:09.773Z