Ultrafilters: Where topological dynamics = algebra = combinatorics
Logic
2009-09-25 v1
Abstract
We survey some connections between topological dynamics, semigroups of ultrafilters, and combinatorics. As an application, we give a proof, based on ideas of Bergelson and Hindman, of the Hales-Jewett partition theorem.
Cite
@article{arxiv.math/9309203,
title = {Ultrafilters: Where topological dynamics = algebra = combinatorics},
author = {Andreas Blass},
journal= {arXiv preprint arXiv:math/9309203},
year = {2009}
}