Kurepa树与Namba强迫
Kurepa-trees and Namba-forcing
摘要:
我们证明了对于任意大的$λ$,紧基数和{ \rm MM}对$λ$ -闭强迫是敏感的.这是通过在任一情况下添加“回归”$λ$ -Kurepa树来完成的。我们认为,退化Kurepa树与{ \rm MM}的破坏需要使用难波强迫。
英文摘要:
We show that compact cardinals and {\rm MM} are sensitive to $λ$-closed forcings for arbitrarily large $λ$. This is done by adding 'regressive' $λ$-Kurepa-trees in either case. We argue that the destruction of regressive Kurepa-trees with {\rm MM} requires the use of Namba forcing.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。