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math.LO2021
Projective well-orders and coanalytic witnesses
Jeffrey Bergfalk, Vera Fischer, Corey Bacal Switzer
We further develop a forcing notion known as Coding with Perfect Trees and show that this poset preserves, in a strong sense, definable -points, definable tight MAD families and…
math.LO2021★ 2 cited
Tight Eventually Different Families
Vera Fischer, Corey Bacal Switzer
Generalizing the notion of a tight almost disjoint family, we introduce the notions of a {\em tight eventually different} family of functions in Baire space and a {\em tight eventu…
math.LO2021
Strong independence and its spectrum
Monroe Eskew, Vera Fischer
For infinite, say is a -maximal independent family if whenever and are pairwise disjoint non-empty in $[\…