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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)


Partition theorems and ultrafilters

Authors: James E. Baumgartner and Alan D. Taylor
Journal: Trans. Amer. Math. Soc. 241 (1978), 283-309
MSC: Primary 04A20
MathSciNet review: 0491193
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Abstract: We introduce a class of ultrafilters on $ \omega $ called k-arrow ultrafilters and characterized by the partition relation $ U \to {(U,k)^2}$. These are studied in conjunction with P-points, Q-points, weakly Ramsey and Ramsey ultrafilters.

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PII: S 0002-9947(1978)0491193-1
Article copyright: © Copyright 1978 American Mathematical Society