CPAgame/prism and ultrafilters on Q and ω

• Autorzy: Millán A.
• Języki publikacji: PL

Abstrakty

EN

In this paper we use the version CPAgame/prism of the Covering Property Axiom, which has been formulated by Ciesielski and Paw- likowski and holds in the iterated perfect set model, to study the rela- tions between different kinds of ultrafilters on ω and Q. In particular, we will give a full account for the logical relations between the properties of being a selective ultrafilter, a P-point, a Q-point, and an ω 1-OK point.

Słowa kluczowe

EN

Covering Property Axiom; CPA; crowded ultrafilter; Q-point; prism-friendly ideal; OK-point

• Wydawca: De Gruyter
• Czasopismo: Journal of Applied Analysis
• Rocznik: 2006
• Tom: Vol. 12, nr 2
• Strony: 153--180
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Millán A.

• Department of Mathematics West Virginia University Morgantown, WV 26506-6310, USA,

Bibliografia

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