Seminar series
Date
Wed, 06 Mar 2019
16:00
16:00
Location
C2
Speaker
Paul Bankston
Organisation
Milwaukee and Aberystwyth
It is known that every continuum X is a weakly confluent image of a continuum Y which is hereditarily indecomposable and of covering dimension one. We use the ultracoproduct construction to gain information about the number of composants of Y. For example, in ZFC, we can ensure that this number is arbitrarily large. And if we assume the GCH, we can arrange for Y to have as many composants at it has points.