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 Mathematical Gymnastics
 Media Item from “Haaretz” Today: “For the first time ever…”
 Jim Geelen, Bert Gerards, and Geoﬀ Whittle Solved Rota’s Conjecture on Matroids
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 Next Week in Jerusalem: Special Day on Quantum PCP, Quantum Codes, Simplicial Complexes and Locally Testable Codes
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 My Mathematical Dialogue with Jürgen Eckhoff
 Test Your Intuition (23): How Many Women?
 Happy Birthday Richard Stanley!
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 Believing that the Earth is Round When it Matters
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 Analysis of Boolean Functions
 Why Quantum Computers Cannot Work: The Movie!
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 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
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 Media Item from "Haaretz" Today: "For the first time ever..."
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Tag Archives: Paul Erdos
Some old and new problems in combinatorics and geometry
Paul Erdős in Jerusalem, 1933 1993 I just came back from a great Erdős Centennial conference in wonderful Budapest. I gave a lecture on old and new problems (mainly) in combinatorics and geometry (here are the slides), where I presented twenty … Continue reading
Erdős’ Birthday
Paul Erdős was born on March 26, 1913 2013 a hundred years ago. This picture (from Ehud Friedgut’s homepage) was taken in September ’96 in a Chinese restaurant in Warsaw, a few days before Paul Erdős passed away. The other diners are Svante Janson, Tomasz Łuczack and … Continue reading
Extremal Combinatorics I: Extremal Problems on Set Systems
The “basic notion seminar” is an initiative of David Kazhdan who joined HU math department around 2000. People give series of lectures about basic mathematics (or not so basic at times). Usually, speakers do not talk about their own research and not even … Continue reading