Abstract colorings, games and ultrafilters
Combinatorics
2021-07-08 v1 General Topology
Abstract
The main result provide a common generalization for Ramsey-type theorems concerning finite colorings of edge sets of complete graphs with vertices in infinite semigroups. We capture the essence of theorems proved in different fields: for natural numbers due to Milliken--Tylor, Deuber--Hindman, Bergelson--Hindman, for combinatorial covering properties due to Scheepers and Tsaban, and local properties in function spaces due to Scheepers. To this end, we use idempotent ultrafilters in the \v{C}ech--Stone compactifications of discrete infinite semigroups and topological games. The research is motivated by the recent breakthrough work of Tsaban about colorings and the Menger covering property.
Keywords
Cite
@article{arxiv.2107.02830,
title = {Abstract colorings, games and ultrafilters},
author = {Piotr Szewczak},
journal= {arXiv preprint arXiv:2107.02830},
year = {2021}
}
Comments
21 pages