Absolutely avoidable order-size pairs for induced subgraphs
Combinatorics
2021-07-30 v2
Abstract
We call a pair of integers, , , \emph{absolutely avoidable} if there is such that for any pair of integers with and there is a graph on vertices and edges that contains no induced subgraph on vertices and edges. Some pairs are clearly not absolutely avoidable, for example is not absolutely avoidable since any sufficiently sparse graph on at least vertices contains independent sets on vertices. Here we show that there are infinitely many absolutely avoidable pairs. We give a specific infinite set such that for any , the pair is absolutely avoidable. In addition, among other results, we show that for any monotone integer function , , there are infinitely many values of such that the pair is absolutely avoidable.
Keywords
Cite
@article{arxiv.2106.14908,
title = {Absolutely avoidable order-size pairs for induced subgraphs},
author = {Maria Axenovich and Lea Weber},
journal= {arXiv preprint arXiv:2106.14908},
year = {2021}
}