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Monthly Archives: March 2018
A Wonderful Paper by Igor Pak: Complexity Problems in Enumerative Combinatorics
Greetings from Sa Pa in the very north of Vietnam. Let me recommend a great thought-provoking paper by Igor Pak: Complexity problems in enumerative combinatorics. As Igor wrote on his blog: Well, I finally finished my ICM paper. It’s only 30 … Continue reading
Frankl’s Conjecture for Large Families: Ilan Karpas’ Proof
Frankl’s conjecture asserts that a for every finite family of of finite sets that is closed under union, there is an element that belongs to at least half the sets in the family. We mentioned the problem in our very … Continue reading
Test your intuition 33: Why is the density of any packing of unit balls decay exponentially with the dimension?
Test your intuition: What is the simplest explanation you can give to the fact that the density of every packing of unit balls in is exponentially small in ? Answers are most welcome. Of course, understanding the asymptotic behavior of … Continue reading
Posted in Combinatorics, Geometry, Test your intuition
Tagged Serge Vlăduţ, Sphere packing
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