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 Jacob Fox, David Conlon, and Benny Sudakov: Vast Improvement of our Knowledge on Unavoidable Patterns in Words
 Subhash Khot, Dor Minzer and Muli Safra proved the 2to2 Games Conjecture
 Interesting Times in Mathematics: Enumeration Without Numbers, Group Theory Without Groups.
 Cody Murray and Ryan Williams’ new ACC breakthrough: Updates from Oded Goldreich’s Choices
 Yael Tauman Kalai’s ICM2018 Paper, My Paper, and Cryptography
 Ilan Karpas: Frankl’s Conjecture for Large Families
 Third third of my ICM 2018 paper – Three Puzzles on Mathematics, Computation and Games. Corrections and comments welcome
 Second third of my ICM 2018 paper – Three Puzzles on Mathematics, Computation and Games. Corrections and comments welcome
 First third of my ICM2018 paper – Three Puzzles on Mathematics, Computation and Games. Corrections and comments welcome
Top Posts & Pages
 Subhash Khot, Dor Minzer and Muli Safra proved the 2to2 Games Conjecture
 Jacob Fox, David Conlon, and Benny Sudakov: Vast Improvement of our Knowledge on Unavoidable Patterns in Words
 New Isoperimetric Results for Testing Monotonicity
 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
 Can Category Theory Serve as the Foundation of Mathematics?
 If Quantum Computers are not Possible Why are Classical Computers Possible?
 Interesting Times in Mathematics: Enumeration Without Numbers, Group Theory Without Groups.
 Third third of my ICM 2018 paper  Three Puzzles on Mathematics, Computation and Games. Corrections and comments welcome
 The Race to Quantum Technologies and Quantum Computers (Useful Links)
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Category Archives: Combinatorics
Basic Notions Seminar is Back! Helly Type Theorems and the Cascade Conjecture
Kazhdan’s Basic Notion Seminar is back! The “basic notion seminar” is an initiative of David Kazhdan who joined the Hebrew University math department around 2000. People give series of lectures about basic mathematics (or not so basic at times). Usually, speakers do … Continue reading
Posted in Combinatorics, Convexity, Open problems
Tagged David Kazhdan, Helly type theorems, Tverberg's theorem
4 Comments
My Very First Book “Gina Says”, Now Published by “World Scientific”
I just received an advanced copy of my very first book: “Gina Says: Adventures in the Blogsphere String War” published by Word Scientific. It is a much changed version compared to the Internet version of 8 years ago and it … Continue reading
Posted in Academics, Combinatorics, Mathematics over the Internet, Physics, Updates
Tagged Gina Says, World Scientific
3 Comments
Itai Benjamini: Coarse Uniformization and Percolation & A Paper by Itai and me in Honor of Lucio Russo
Here is another video of a smashing short talk by my dear friend Itai Benjamini with beautiful conjectures proposing an important new step in the connection between percolation and conformal geometry. Here is the link to Itai’s original paper Percolation … Continue reading
Bálint Virág: Random matrices for Russ
You can watch now all the videos for Russfest Elegance in Probability. Many great talks! I just watched Bálint Virág‘s lecture “Random matrices for Russ”. Highly recommended.
Posted in Combinatorics, Probability
Tagged Bálint Virág, random matrices, Russ Lyons
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Mustread book by Avi Wigderson
Originally posted on Windows On Theory:
Avi Wigderson is one of the most prolific and creative theoretical computer scientists (in fact, he is one of the most prolific and creative scientists, period). Over the last several years, Avi had worked…
Posted in Combinatorics, Computer Science and Optimization, Updates
Tagged Avi Wigderson
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High Dimensional Combinatorics at the IIAS – Program Starts this Week; My course on Hellytype theorems; A workshop in Sde Boker
The academic year starts today. As usual it is very hectic and it is wonderful to see the ever younger and younger students. Being a TelAvivian in residence in the last few years, I plan this year to split my … Continue reading
Posted in Combinatorics, Computer Science and Optimization, Geometry, Updates
Tagged Alex Lubotzky, Nati Linial, Tali Kaufman
4 Comments
Stan Wagon, TYI 23: Ladies and Gentlemen: The Answer
TYI 32, kindly offered by Stan Wagon asked A round cake has icing on the top but not the bottom. Cut out a piece in the usual shape (a sector of a circle with vertex at the center), remove it, … Continue reading
Posted in Combinatorics, Geometry, Test your intuition
Tagged Stan Wagon, Test your intuition
8 Comments
Ladies and Gentlemen, Stan Wagon: TYI 32 – A Cake Problem.
The following post was kindly contributed by Stan Wagon. Stan (Wikipedea) is famous for his books, papers, snowsculptures, and squarewheels bicycles (see picture below) ! A round cake has icing on the top but not the bottom. Cut out a … Continue reading
Posted in Combinatorics, Guest blogger, Uncategorized
Tagged Guest blogger, Stan Wagon, Test your intuition
7 Comments
TYI 31 – Rados Radoicic’s Rope Problem
Ropemaker (source) Rados Radoicic wrote me: “Several years back, I heard the following puzzle that turns out to be rather ‘classical’: “There are N ropes in a bag. In each step, two rope ends are picked uniformly at random, tied … Continue reading
Posted in Combinatorics, Probability, Test your intuition
Tagged Rados Radoicic, Test your intuition
7 Comments
Eran Nevo: gconjecture part 4, Generalizations and Special Cases
This is the fourth in a series of posts by Eran Nevo on the gconjecture. Eran’s first post was devoted to the combinatorics of the gconjecture and was followed by a further post by me on the origin of the gconjecture. Eran’s second post was about … Continue reading
Posted in Combinatorics, Convex polytopes, Guest blogger, Open problems
Tagged Eran Nevo, gconjecture
2 Comments