Recent Comments

Recent Posts
 Test Your Intuition about the AlonTarsi Conjecture
 Thilo Weinert: Transfinite Ramsey Numbers
 Timothy Chow Launched Polymath12 on Rota Basis Conjecture and Other News
 Proof By Lice!
 The seventeen camels riddle, and Noga Alon’s camel proof and algorithms
 Edmund Landau and the Early Days of the Hebrew University of Jerusalem
 Boolean Functions: Influence, Threshold, and Noise
 Laci Babai Visits Israel!
 Polymath10 conclusion
Top Posts & Pages
 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
 A Breakthrough by Maryna Viazovska Leading to the Long Awaited Solutions for the Densest Packing Problem in Dimensions 8 and 24
 Believing that the Earth is Round When it Matters
 Ziegler´s Lecture on the Associahedron
 Test Your Intuition about the AlonTarsi Conjecture
 Extremal Combinatorics IV: Shifting
 Five Open Problems Regarding Convex Polytopes
 Updates and plans III.
 Can Category Theory Serve as the Foundation of Mathematics?
RSS
Category Archives: Uncategorized
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
Posted in Uncategorized
Leave a comment
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.…
Posted in Uncategorized
2 Comments
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
Posted in Uncategorized
2 Comments
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
Posted in Uncategorized
Leave a comment
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
Posted in Uncategorized
2 Comments
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
Posted in Uncategorized
10 Comments
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
Banknotes with Pictures of Mathematicians
Are you aware of any? (current ones? old ones?)
Posted in Uncategorized
12 Comments