Many partition relations below density
نویسندگان
چکیده
منابع مشابه
Weak Partition Relations
The partition relation Ri-*0*i)ï,a, which was known to contradict the continuum hypothesis [1], is disproved without this hypothesis. For cardinals k^.co and X>1, let P{k, X) be the following partition relation: For any mapping F of the set [k]2 of unordered pairs of elements of k into X, there is a set B<=,k, of cardinality \B\ = k, such that the image of [B]2 under F is not all of X. Such a s...
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ژورنال
عنوان ژورنال: Israel Journal of Mathematics
سال: 2012
ISSN: 0021-2172,1565-8511
DOI: 10.1007/s11856-012-0027-y