Weak square sequences and special Aronszajn trees

作者：Krueger John^*

来源：Fundamenta Mathematicae, 2013, 221(3): 267-284.

DOI：10.4064/fm221-3-4

• weak square sequence
• special Aronszajn tree

A classical theorem of set theory is the equivalence of the weak square principle square(mu)* with the existence of a special Aronszajn tree on mu(+). We introduce the notion of a weak square sequence on any regular uncountable cardinal, and prove that the equivalence between weak square sequences and special Aronszajn trees holds in general.

• 出版日期2013