Fri Nov 3, 2006
60 Evans Hall, 4:10–6 PM
Assaf Sharon (UC-Irvine)
Some Consistency Results in Singular Cardinal Combinatorics
In this talk we shall present some consistency results which show that the failure of the singular cardinals hypothesis at a cardinal of countable cofinality does not imply the existence of certain combinatorial properties on its successor (such as approachability sequences, very good scales, and nonreflecting stationary sets).