Time: | 3:30pm - 4:30 pm |
Room: |
Wean Hall 8220
|
Speaker: |
James Cummings Department of Mathematical Sciences CMU |
Title: |
More on compactness
|
Abstract: |
I'll discuss compactness phenomena at regular cardinals, particularly successors of singular cardinals. In particular I'll explain why ℵω+1 is in some respects completely different from ℵω2+1. (This talk is related to the talks about compactness that I gave in the Fall semester, but is logically independent) |