Geodesic
A homological approach to two problems on finite sets
Journal of Algebraic Combinatorics, Tome 9 (1999) no. 2, pp. 141-149.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We propose a homological approach to two conjectures descended from the Erdös-Ko-Rado Theorem, one due to Chvátal and the other to Frankl and Füredi. We apply the method to reprove, and in one case improve, results of these authors related to their conjectures.
Keywords: extremal problem, finite set, Erdős-ko-rado theorem 
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     author = {Cs\'ak\'any, Rita and Kahn, Jeff},
     title = {A homological approach to two problems on finite sets},
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Csákány, Rita; Kahn, Jeff. A homological approach to two problems on finite sets. Journal of Algebraic Combinatorics, Tome 9 (1999) no. 2, pp. 141-149. http://geodesic.mathdoc.fr/item/JAC_1999__9_2_a4/