English

Topological conjugations are not constructable

Logic 2013-06-10 v2

Abstract

We construct two computable topologically conjugate functions for which no conjugacy is computable, or even hyperarithmetic, resolving an open question of Kennedy and Stockman.

Cite

@article{arxiv.1303.2244,
  title  = {Topological conjugations are not constructable},
  author = {Linda Brown Westrick},
  journal= {arXiv preprint arXiv:1303.2244},
  year   = {2013}
}

Comments

9 pages. v2 adds a note on folklore

R2 v1 2026-06-21T23:39:22.361Z