English

Notions of robust information coding

Logic 2014-06-12 v1

Abstract

We introduce and study several notions of computability-theoretic reducibility between subsets of ω\omega that are "robust" in the sense that if only partial information is available about the oracle, then partial information can be recovered about the output. These are motivated by reductions between Π21\Pi^1_2 principles in the context of reverse mathematics, and also encompasses generic and coarse reducibilities, previously studied by Jockusch and Schupp (2012).

Keywords

Cite

@article{arxiv.1406.2982,
  title  = {Notions of robust information coding},
  author = {Damir Dzhafarov and Gregory Igusa},
  journal= {arXiv preprint arXiv:1406.2982},
  year   = {2014}
}
R2 v1 2026-06-22T04:36:18.070Z