Keeping additivity of the null ideal small
Author: Jindrich Zapletal
Journal: Proc. Amer. Math. Soc. 125 (1997), 2443-2451
MSC (1991): Primary 03E35, 03E50
MathSciNet review: 1389541
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Abstract: We shall show that various statements are consistent with additivity of the null ideal equal to for example, ``all branchless trees of size are special'', (S) conjecture and ``there are only five cofinal types of directed posets of size ''.
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Affiliation: M. S. R. I., 1000 Centennial Drive, Berkeley, California 94720
Address at time of publication: Mailcode 253-37, California Institute of Technology, Pasadena, California 91125
Email: email@example.com, firstname.lastname@example.org
Received by editor(s): November 8, 1995
Received by editor(s) in revised form: February 26, 1996
Additional Notes: Research at MSRI partially supported by NSF grant # DMS 9022140. The author wishes to thank Itay Neeman for asking the original inspiring question.
Communicated by: Andreas R. Blass
Article copyright: © Copyright 1997 American Mathematical Society