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Systems of Enumerable Sets and Their Enumerationsby V. A. Uspénskij

✍ Scribed by Review by: Andrzej Ehrenfeucht

Book ID
124950737
Publisher
Association for Symbolic Logic
Year
1957
Tongue
English
Weight
85 KB
Volume
22
Category
Article
ISSN
0022-4812

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📜 SIMILAR VOLUMES

An intersection theorem for systems of s
An intersection theorem for systems of sets
✍ A. V. Kostochka 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 346 KB 👁 2 views

Erdos and Rado defined a A-system, as a family in which every two members have the same intersection. Here we obtain a new upper bound on the maximum cardinality q ( n , q ) of an n-uniform family not containing any A-system of cardinality q. Namely, we prove that, for any a > 1 and q , there exists