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Bibliographic Details
Main Author: Poliakov, Nikolai L.
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2605.09714
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Table of Contents:
  • We define a special version of the ultralimit, called the skewed ultralimit. Using this tool, we show that the set of ultrafilter types in the $C$-equivalence class of a Ramsey ultrafilter $\mathfrak u\in βω$ with the Rudin-Keisler order is isomorphic to the ultrapower of $(ω, \leq)$.