The fourth head of βℕ [chapter]

Ilijas Farah
2007 Open Problems in Topology II  
We start with a concrete problem about continuous maps on thě Cech-Stone remainder of the natural numbers, N * = βN \ N, and gradually zoom out to the larger picture.
doi:10.1016/b978-044452208-5/50014-4 fatcat:kyjpcahc3rg7vmknu7uj4vrpdq