English

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