Short lists with short programs for functions
Logic
2014-11-05 v3
Abstract
Let be an optimal G\"odel numbering of the family of computable functions (in Schnorr's sense), where ranges over binary strings. Assume that a list of strings is computable from and for all contains a -program for whose length is at most bits larger that the length of the shortest -program for . We show that for infinitely many the list must have strings. Here is an arbitrary function of .
Cite
@article{arxiv.1409.5906,
title = {Short lists with short programs for functions},
author = {Nikolay Vereshchagin},
journal= {arXiv preprint arXiv:1409.5906},
year = {2014}
}