| Autor: |
Fred Galvin, Karel Prikry |
| Předmět: |
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| Zdroj: |
Proceedings of the American Mathematical Society; Feb2001, Vol. 129 Issue 2, p315-323, 9p |
| Abstrakt: |
We introduce a notion of weak intersection number of a collection of sets, modifying the notion of intersection number due to J.L. Kelley, and obtain an analogue of Kelley's characterization of Boolean algebras which support a finitely additive strictly positive measure. We also consider graph-theoretic reformulations of the notions of intersection number and weak intersection number. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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