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arXiv:1201.1713 [math.LO]AbstractReferencesReviewsResources

The ultrafilter number for singular cardinals

Shimon Garti, Saharon Shelah

Published 2012-01-09, updated 2012-05-31Version 2

We prove the consistency of a singular cardinal $\lambda$ with small value of the ultrafilter number $u_\lambda$, and arbitrarily large value of $2^\lambda$.

Comments: 8 pages
Journal: Acta Mathematica Hungarica, 137,4 (2012) pp. 296-301
Categories: math.LO
Subjects: 03E05, 03E55
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