Given a Boolean algebra double-struk B sign and an embedding e: double-struk B sign → P(ℕ)/fin we consider the possibility of extending each or some automorphism of double-struk B sign to the whole P(ℕ)/fin. Among other things, we show, assuming CH, that for a wide class of Boolean algebras there are embeddings for which no non-trivial automorphism can be extended.
CITATION STYLE
Bella, A., Dow, A., Hart, K. P., Hrušák, M., Van Mill, J., & Ursino, P. (2002). Embeddings into P(ℕ)/fin and extension of automorphisms. Fundamenta Mathematicae, 174(3), 271–284. https://doi.org/10.4064/fm174-3-7
Mendeley helps you to discover research relevant for your work.