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Intersecting Balanced Families of Sets

✍ Scribed by Adam Idzik; Gyula O.H. Katona; Rajiv Vohra


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
117 KB
Volume
93
Category
Article
ISSN
0097-3165

No coin nor oath required. For personal study only.

✦ Synopsis


Suppose that any t members (t 2) of a regular family on an n element set have at least k common elements. It is proved that the largest member of the family has at least k 1Γ‚t n 1&1Γ‚t elements. The same holds for balanced families, which is a generalization of the regularity. The estimate is asymptotically sharp.


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