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- The Trifference Problem
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- Greatest Hits 2015-2022, Part I
- Tel Aviv University Theory Fest is Starting Tomorrow
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- A Nice Example Related to the Frankl Conjecture
- Amazing: Justin Gilmer gave a constant lower bound for the union-closed sets conjecture
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- Inaugural address at the Hungarian Academy of Science: The Quantum Computer – A Miracle or Mirage
Top Posts & Pages
- Amazing: Justin Gilmer gave a constant lower bound for the union-closed sets conjecture
- Amazing: Jinyoung Park and Huy Tuan Pham settled the expectation threshold conjecture!
- Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
- Quantum Computers: A Brief Assessment of Progress in the Past Decade
- A Nice Example Related to the Frankl Conjecture
- The Trifference Problem
- Aubrey de Grey: The chromatic number of the plane is at least 5
- Sarkaria's Proof of Tverberg's Theorem 1
- Amazing: Karim Adiprasito proved the g-conjecture for spheres!
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Monthly Archives: February 2017
Thilo Weinert: Transfinite Ramsey Numbers
This is first of three posts kindly written by Thilo Weinert Recently Gil asked me whether I would like to contribute to his blog and I am happy to do so. I enjoy both finite and infinite combinatorics and it … Continue reading
Timothy Chow Launched Polymath12 on Rota Basis Conjecture and Other News
Polymath12 Timothy Chow launched polymath12 devoted to the Rota Basis conjecture on the polymathblog. A classic paper on the subject is the 1989 paper by Rosa Huang and Gian Carlo-Rota. Let me mention a strong version of Rota’s conjecture (Conjecture … Continue reading
Posted in Combinatorics, Mathematics over the Internet, Movies, Music, Sport, Updates
Tagged Polymath12
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Proof By Lice!
From camels to lice. (A proof promised here.) Theorem (Hopf and Pannwitz, 1934): Let be a set of points in the plane in general position (no three points on a line) and consider line segments whose endpoints are in . Then … Continue reading
The seventeen camels riddle, and Noga Alon’s camel proof and algorithms
Three children inherited 17 camels. The will gave one half to one child, one third to a second child and one ninth to the third. The children did not know what to do and a neighbor offered to lend them … Continue reading
Edmund Landau and the Early Days of the Hebrew University of Jerusalem
Some personal/historical remarks in first minutes of my lecture at 7ECM on July 2016… German-Jewish mathematicians in the early days of the Hebrew University of Jerusalem Being invited to give a plenary lecture at the 7ECM was a great honor … Continue reading