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math.LO2001
Embeddings into P(N)/fin and extension of automorphisms
A. Bella, A. Dow, K. P. Hart +3
Given a Boolean algebra B and an embedding e:B -> P(N)/fin we consider the possibility of extending each or some automorphism of B to the whole P(N)/fin. Among other things, we sho…
math.GN2001
On the Maćkowiak-Tymchatyn theorem
K. P. Hart, B. J. van der Steeg
In this paper we give new proofs of the theorem of Maćkowiak and Tymchatyn that every metric continuum is a weakly-confluent image of some one-dimensional hereditarily indecomposab…