On quantitative aspects of a canonisation theorem for edge-orderings
Combinatorics
2022-11-15 v2
Abstract
For integers and there are canonical orderings of the edges of the complete -uniform hypergraph with vertex set . These are exactly the orderings with the property that any two subsets of the same size induce isomorphic suborderings. We study the associated canonisation problem to estimate, given and , the least integer such that no matter how the -subsets of are ordered there always exists an -element set whose -subsets are ordered canonically. For fixed we prove lower and upper bounds on these numbers that are times iterated exponential in a polynomial of .
Keywords
Cite
@article{arxiv.2012.09256,
title = {On quantitative aspects of a canonisation theorem for edge-orderings},
author = {Christian Reiher and Vojtěch Rödl and Marcelo Sales and Kevin Sames and Mathias Schacht},
journal= {arXiv preprint arXiv:2012.09256},
year = {2022}
}
Comments
revised according to referee report