English

Descriptive Combinatorics, Computable Combinatorics, and ASI Algorithms

Logic 2022-06-20 v1 Combinatorics

Abstract

We introduce new types of local algorithms, which we call "ASI Algorithms", and use them to demonstrate a link between descriptive and computable combinatorics. This allows us to unify arguments from the two fields, and also sometimes to port arguments from one field to the other. As an example, we generalize a computable combinatorics result of Kierstead and use it to get within one color of the Baire measurable analogue of Vizing's Theorem. We also improve Kierstead's result for multigraphs along the way.

Keywords

Cite

@article{arxiv.2206.08426,
  title  = {Descriptive Combinatorics, Computable Combinatorics, and ASI Algorithms},
  author = {Long Qian and Felix Weilacher},
  journal= {arXiv preprint arXiv:2206.08426},
  year   = {2022}
}

Comments

20 pages

R2 v1 2026-06-24T11:54:23.108Z