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The Trifference Problem
Originally posted on Anurag's Math Blog:
What is the largest possible size of a set of ternary strings of length , with the property that for any three distinct strings in , there is a position where they all…
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Greatest Hits 2015-2022, Part II
This is the second part of Greatest Hits 2015-2022, Part I. Here are popular and favorite posts published in 2019-2022. 2019 Supremacy and Sensitivity (and Sunflowers) Test your intuition 38 was contributed in March 2019 by my youngest son Lior. … Continue reading
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Greatest Hits 2015-2022, Part I
In February 2015 I wrote a post on the blog’s greatest hits in the first seven years, and its time to write a similar post for the eight years that followed. Quick updates: In recent months I took part in … Continue reading
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Noga Alon and Udi Hrushovski won the 2022 Shaw Prize
Noga Alon, yesterday at TAU, with his long-time collaborators and former students Michael Krivelevich and Benny Sudakov (left) Udi Hrushovski (right) Heartfelt congratulations to Noga Alon and to Ehud (Udi) Hrushovski for winning the 2022 Shaw Prize in Mathematical Sciences! … Continue reading
Mathematical news to cheer you up
1. Anna Kiesenhofer, a PhD mathematician researching PDEs at Ecole Polytechnique Federale Lausanne (EPFL), won the gold medal in the women’s bicycle road race at the Olympics. Here are two trivia question: a) Which hero of a recent post over … Continue reading
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Petra! Jordan!
Last week we had a lovely small workshop in Eilat organized by Nathan Rubin, and as possible since the peace agreement of 1994 between Israel and Jordan, we visited Jordan for one day and saw the spectacular ancient city of … Continue reading
Thinking about the people of Wuhan and China
My thoughts are with the people of China who are at the forefront of the struggle with the coronavirus outbreak.
Three Pictures
With Tolya (Anatoly) Vershik, Saint Petersburg, 2003 Peter Frankl and Voita (Vojtěch) Rödl, NYC, summer 1986 (or 1987). This post mentions the Frankl-Rödl theorem. Jeroen Zuiddam at IAS, a few days ago. (See this post) We just moved to a … Continue reading
Combinatorics and More – Greatest Hits
Combinatorics and More’s Greatest Hits First Month Combinatorics, Mathematics, Academics, Polemics, … Helly’s Theorem, “Hypertrees”, and Strange Enumeration I (There were 3 follow up posts:) Extremal Combinatorics I: Extremal Problems on Set Systems (There were 4 follow up posts II ; III; IV; VI) Drachmas Rationality, Economics and … Continue reading
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Dorit Aharonov’s on TEDx: A Feldenkrais lesson for the beginner scientist
Here is a lovely lecture starting with quantum computers, going through the Feldenkrais method, and ending with a mathematical puzzle. Click on the picture for the video of the talk. Here are Dorit’s four body-mind principles for learning: 1. Start … Continue reading
Combinatorics and more 