Excluding subdivisions of bounded degree graphs
Abstract
Let be a fixed graph. What can be said about graphs that have no subgraph isomorphic to a subdivision of ? Grohe and Marx proved that such graphs satisfy a certain structure theorem that is not satisfied by graphs that contain a subdivision of a (larger) graph . Dvo\v{r}\'ak found a clever strengthening---his structure is not satisfied by graphs that contain a subdivision of a graph , where has "similar embedding properties" as . Building upon Dvo\v{r}\'ak's theorem, we prove that said graphs satisfy a similar structure theorem. Our structure is not satisfied by graphs that contain a subdivision of a graph that has similar embedding properties as and has the same maximum degree as . This will be important in a forthcoming application to well-quasi-ordering.
Cite
@article{arxiv.1407.4428,
title = {Excluding subdivisions of bounded degree graphs},
author = {Chun-Hung Liu and Robin Thomas},
journal= {arXiv preprint arXiv:1407.4428},
year = {2022}
}