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 Polymath 10 post 6: The ErdosRado sunflower conjecture, and the Turan (4,3) problem: homological approaches.
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Monthly Archives: October 2008
Malawi
Malawi Here are two additional sectionettes from my “Notices of the AMS” book review entitled “Economic and Common Sense” on Steven Landsburg’s book “More Sex is Safe Sex – the unconventional wisdom of economics”. Both sectionettes deal with Government intervention in economics. The first is about fertilizer … Continue reading
Posted in Economics
Tagged Bailout, Crisis, Fertilizers, Inflation, Malawi, Subsedies
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Two Math Riddles
Usually I am not particularly good at telling math riddles or solving them, and I was not planning on presenting math riddles here. But these days, when mathematical blogs break new ground and enter uncharted territories, let me make an exception and tell you … Continue reading
About Mathematics
This post collects some brief philosophical thoughts about mathematics that appeared as part of my paper “Combinatorics with a geometric flavor: some examples,” from the proceedings of the conference “Vision in Mathematics, towards 2000.” I added two small items (the first and … Continue reading
Extremal Combinatorics IV: Shifting
Compression We describe now a nice proof technique called “shifting” or “compression” and mention a few more problems. The SauerShelah Lemma: Let . Recall that a family shatters a set if for every there is such that … Continue reading
Stand Clear of The Closing Doors, Please
Do you miss New York City? Here is something to remind you click here click also here (video) One more time? Click here. London lovers, however, say that this is nothing compared to
Posted in Uncategorized
Tagged Mind the gap, Missing NYC, New York City, Stay clear of the closing doors
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