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Title: On r-cross intersecting families of sets
Authors: Ku, C.Y. 
Wong, K.B.
Keywords: Cross-intersecting family
Erdo{double acute}s-Ko-Rado
Issue Date: Apr-2013
Citation: Ku, C.Y.,Wong, K.B. (2013-04). On r-cross intersecting families of sets. Far East Journal of Mathematical Sciences 75 (2) : 295-300. ScholarBank@NUS Repository.
Abstract: Let [n] = {1,..., n} and denote the family of all k-subsets of [n]. For i = 1, 2,..., r, let Fi⊆. Suppose that F1∩··· ∩Fr≠∅ holds for all Fi∈Fi. We show that ki≤n/2 for all i, then Moreover, equality holds if and only if there is an element x ∈ [n] such that for all i. © 2013 Pushpa Publishing House.
Source Title: Far East Journal of Mathematical Sciences
ISSN: 09720871
Appears in Collections:Staff Publications

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