ArticleOriginal scientific text
Title
On automorphisms of Boolean algebras embedded in P (ω)/fin
Authors 1
Affiliations
- Institute of Mathematics, Pedagogical University of Kraków, Podchorążych 2, 30-084 Kraków, Poland
Abstract
We prove that, under CH, for each Boolean algebra A of cardinality at most the continuum there is an embedding of A into P(ω)/fin such that each automorphism of A can be extended to an automorphism of P(ω)/fin. We also describe a model of ZFC + MA(σ-linked) in which the continuum is arbitrarily large and the above assertion holds true.
Bibliography
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Additional information
http://matwbn.icm.edu.pl/ksiazki/fm/fm150/fm15023.pdf