2 papers
math.LO2004
On two problems of Erdos and Hechler: New methods in singular Madness
Menahem Kojman, Wieslaw Kubis, Saharon Shelah
For an infinite cardinal mu, MAD(mu) denotes the set of all cardinalities of nontrivial maximal almost disjoint families over mu. Erdos and Hechler proved the consistency of [mu in…
math.LO2002
Analytic Colorings
Wieslaw Kubís, Saharon Shelah
We investigate the existence of perfect homogeneous sets for analytic colorings. An analytic coloring of X is an analytic subset of [X]^N, where N>1 is a natural number. We define…