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On subsystems of systems of sets

✍ Scribed by O. A. Ziza

Publisher
SP MAIK Nauka/Interperiodica
Year
1975
Tongue
English
Weight
340 KB
Volume
17
Category
Article
ISSN
0001-4346

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πŸ“œ SIMILAR VOLUMES

On set systems without weak 3-Ξ”-subsyste
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✍ M. Axenovich; D. Fon-Der-Flaass; A. Kostochka πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 226 KB

A collection of sets is called a weak A-system if sizes of all pairwise intersections of these sets coincide. We prove a new upper bound on the function ./~,.(n), the maximal size of a collection of n-element sets no three of which form a weak A-system. Namely, we prove that, for every 6 > 0. L,(n)