Talk page
Title:
Four and a half proofs of a product-measure version of the Erdös-Ko-Rado Theorem.
Speaker:
Abstract:
The EKR theorem, which is the cornerstone of extremal combinatorics, characterizes maximal intersecting families of sets. Its setting fixes a ground set of size n, and then studies the size and structure of intersecting families of subsets of fixed size k. A setting which many might consider no less natural, is considering the Boolean lattice of all subsets of {1,...,n} endowed with a product measure, and studying the structure and measure of maximal intersecting families.
In this talk we´ll see the simple theorem which is the natural product-measure analog of the EKR theorem, and the tip of an iceberg, and study a plethora of proofs which hopefully illuminate various aspects of it.
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