A cross-intersection theorem for subsets of a set
نویسندگان
چکیده
منابع مشابه
A short proof of a cross-intersection theorem of Hilton
Families A1, ...,Ak of sets are said to be cross-intersecting if Ai ∩ Aj 6= ∅ for any Ai ∈ Ai and Aj ∈ Aj , i 6= j. A nice result of Hilton that generalises the Erd®sKo-Rado (EKR) Theorem says that if r ≤ n/2 and A1, ..., Ak are cross-intersecting sub-families of ( [n] r ) , then
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ژورنال
عنوان ژورنال: Bulletin of the London Mathematical Society
سال: 2015
ISSN: 0024-6093
DOI: 10.1112/blms/bdu110