Splitting Families and Complete Separability

Heike Mildenberger, Dilip Raghavan, Juris Steprans
2013 Canadian mathematical bulletin  
We answer a question from Raghavan and Steprāns' paper on weakly tight families by showing that s = s_ω, ω. Then we use this to construct a completely separable maximal almost disjoint family under ≤, partially answering a question of Shelah.
doi:10.4153/cmb-2013-027-2 fatcat:n6iaviksgver5i6rkzzisrz7gm