# Dilip Raghavan: Cardinal invariants above the continuum

Invitation to the Logic Seminar at the National University of Singapore

Date: Wednesday, 28 September 2016, 17:00 hrs

Room: S17#04-05, Department of Mathematics, NUS

Speaker: Dilip Raghavan.

Title: Cardinal invariants above the continuum.

URL: http://www.comp.nus.edu.sg/~fstephan/logicseminar.html

Abstract: I will summarize some recent joint work with Saharon Shelah on
cardinal invariants at uncountable regular cardinals. There are some new
consistency results as well as new theorems in ZFC. The consistency
results rely on the use Boolean ultrapowers of forcing notions. I will try
to sketch the proof of some ZFC results involving the bounding and almost
disjointness at a regular uncountable cardinal.