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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Israel Journal of Ma...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Israel Journal of Mathematics
Article . 1986 . Peer-reviewed
License: Springer TDM
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Non-special Aronszajn trees on ℵω+1

Authors: Shai Ben-David; Saharon Shelah;

Non-special Aronszajn trees on ℵω+1

Abstract

We continue our research on the relative strength ofL-like combinatorial principles for successors of singular cardinals. In [3] we have shown that the existence of a λ+-special Aronszajn tree does not follow from that of a λ+-Souslin tree. It follows from [5], [4] and [6] that under G.C.H. □λ does imply the existence of a λ+-Souslin tree. In [2] we show that □λ does not follow from the existence of a λ+-special Aronszajn tree. Here we show that the existence of such a tree implies that of an ‘almost Souslin’ λ+-tree. It follows that the statement “All λ+-Aronszajn trees are special” implies that there are no λ+-Aronszajn trees.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Top 10%
Top 10%
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