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 Amazing: Stefan Glock, Daniela Kühn, Allan Lo, and Deryk Osthus give a new proof for Keevash’s Theorem. And more news on designs.
 The US Elections and Nate Silver: Informtion Aggregation, Noise Sensitivity, HEX, and Quantum Elections.
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 AlexFest: 60 Faces of Groups
 Postoctoral Positions with Karim and Other Announcements!
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 AviFest, AviStories and Amazing Cash Prizes.
 Polymath 10 post 6: The ErdosRado sunflower conjecture, and the Turan (4,3) problem: homological approaches.
 Polymath 10 Emergency Post 5: The ErdosSzemeredi Sunflower Conjecture is Now Proven.
Top Posts & Pages
 Benoît's Fractals
 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
 Mind Boggling: Following the work of Croot, Lev, and Pach, Jordan Ellenberg settled the cap set problem!
 Polymath 10 Emergency Post 5: The ErdosSzemeredi Sunflower Conjecture is Now Proven.
 Stefan Steinerberger: The Ulam Sequence
 Amazing: Peter Keevash Constructed General Steiner Systems and Designs
 Amazing: Stefan Glock, Daniela Kühn, Allan Lo, and Deryk Osthus give a new proof for Keevash's Theorem. And more news on designs.
 Believing that the Earth is Round When it Matters
 Polymath10: The Erdos Rado Delta System Conjecture
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Category Archives: Uncategorized
שאלה לנתניהו – הסרט, התשובה שלי, וכמה תשובות של אחרים
מדוע פרק בנימין נתניהו את הקואליציה והממשלה במקום לחזק את הממשלה ולבסס את התמיכה בה כאשר העריך שאנו עומדים בפני עימות בנושא קיומי עם הממשל האמריקאי התשובה שלי היא פשוטה : נתניהו כשל! יש להחליף אותו איזה סיבה היתה לבנימין … Continue reading
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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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From Peter Cameron’s Blog: The symmetric group 3: Automorphisms
Originally posted on Peter Cameron's Blog:
No account of the symmetric group can be complete without mentioning the remarkable fact that the symmetric group of degree n (finite or infinite) has an outer automorphism if and only if n=6.…
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Media items on David, Amnon, and Nathan
David Kazhdan, a very famous mathematician from my department with a superhuman understanding of mathematics (and more) is recovering from a terrible bike accident. Here is an article about him from “Maariv.” (In Hebrew) Amnon Shashua, a computer science … 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 bodymind principles for learning: 1. Start … Continue reading
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Alexander Chervov MO’s Question: NoteworthyAchievementsInAndAround2010
Alexander Chervov asked over Mathoverflow about Noteworthy results in and around 2010 and some interesting results were offered in the answers. If you would like to mention additional results you can comment on them here. The only requirement is to … Continue reading
Course Announcement: High Dimensional Expanders
Alex Lubotzky and I are running together a year long course at HU on High Dimensional Expanders. High dimensional expanders are simplical (and more general) cell complexes which generalize expander graphs. The course will take place in Room 110 of the mathematics building … Continue reading
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Baggage Claim or Baggage Reclaim
Visiting London, Cambridge and the very interesting 2010 British Colloquium in Theoretical Computer Science at Edinburgh was splendid! More later. But a poll is called for. How to call the area to collect your baggage: “Baggage reclaim” or “Baggage claim”? … Continue reading
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A Little Story Regarding Borsuk’s Conjecture
Jeff Kahn Jeff and I worked on the problem for several years. Once he visited me with his family for two weeks. Before the visit I emailed him and asked: What should we work on in your visit? Jeff asnwered: … Continue reading