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Ultrafilters: Where topological dynamics = algebra = combinatorics

Andreas Blass
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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.

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Andreas Blass. 1993-09-08. Ultrafilters: Where topological dynamics = algebra = combinatorics. https://arxiv.org/abs/math/9309203

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