首页 | 本学科首页   官方微博 | 高级检索  
     


The two-cardinals transfer property and resurrection of supercompactness
Authors:Shai Ben-David   Saharon Shelah
Affiliation:Department of Computer Science, Technion-Israel Institute of Technology, Haifa, Israel ; Department of Mathematics, The Hebrew University, Jerusalem, Israel
Abstract:We show that the transfer property $(aleph _1,aleph _0)to (lambda ^+,lambda )$ for singular $lambda $ does not imply (even) the existence of a non-reflecting stationary subset of $lambda ^+$. The result assumes the consistency of ZFC with the existence of infinitely many supercompact cardinals. We employ a technique of ``resurrection of supercompactness'. Our forcing extension destroys the supercompactness of some cardinals; to show that in the extended model they still carry some of their compactness properties (such as reflection of stationary sets), we show that their supercompactness can be resurrected via a tame forcing extension.

Keywords:
点击此处可从《Proceedings of the American Mathematical Society》浏览原始摘要信息
点击此处可从《Proceedings of the American Mathematical Society》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号