ISSN:
1435-5914
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
,
Mathematics
Notes:
Abstract Letf(n, k) denote the maximum length of a sequence (F 1,F 2,...) of distinct subsets of ann-element set with the property that|F i ∖F j | 〈 k for alli 〈 j. We determine the exact values off(n, 2) and characterize all the extremal sequences. Fork ≥ 3 we prove that $$f(n,k) = (1 + o(1))\left( {\begin{array}{*{20}c} n \\ k \\ \end{array} } \right)$$ . Some related problems are also considered.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01788556
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