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Boise Extravaganza in Set Theory
March 28-30, 2008
Boise State University
Boise, Idaho, USA

Organizers
Liljana Babinkostova, Stefan Geschke and Marion Scheepers

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Partitions and Near Coherence
by
Andreas Blass
University of Michigan

Most of this talk is about polarized partition relations on omega, where the homogeneous sets are sought in specified ultrafilters. Characterizations of the ultrafilters for which such relations hold involve near coherence of ultrafilters. If time permits, I'll also describe a connection between near coherence and the union ultrafilters that arise from Hindman's partition theorem.

Date received: March 24, 2008

Copyright © 2008 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cawg-15.