Recent Comments
Vijay Vazirani on To cheer you up in difficult t… Vijay Vazirani on To cheer you up in difficult t… Gil Kalai on To cheer you up in difficult t… Victory Omole on To cheer you up in difficult t… To cheer you up in d… on Test Your Intuition (27) about… To cheer you up in d… on Jim Geelen, Bert Gerards, and… To cheer you up in d… on Timothy Chow Launched Polymath… Thomas Bloom on To cheer you up in difficult t… William Gasarch on To cheer you up in difficult t… Thomas Bloom on To cheer you up in difficult t… Gil Kalai on To cheer you up in difficult t… William Gasarch on To cheer you up in difficult t…
Monthly Archives: July 2011
In how many ways you can chose a committee of three students from a class of ten students?
The renewed interest in this old post, reminded me of a more recent event: Question: In how many ways you can chose a committee of three students from a class of ten students? My expected answer: which is 120. Alternative … Continue reading
Posted in Mathematics to the rescue, Riddles, Teaching
1 Comment
Joe’s 100th MO question
MathOverflow is a remarkable recent platform for research level questions and answers in mathematics. Joe O’Rourke have asked over MO wonderful questions. (Here is a link to the questions) Many of those questions can be the starting point of a research … Continue reading
Posted in Mathematics over the Internet, Open problems
Tagged Joseph O'Rourke, Mathoverflow, planetMO
5 Comments
A Couple Updates on the Advances-in-Combinatorics Updates
In a recent post I mentioned quite a few remarkable recent developments in combinatorics. Let me mention a couple more. Independent sets in regular graphs A challenging conjecture by Noga Alon and Jeff Kahn in graph theory was about the number of … Continue reading
Posted in Combinatorics, Open problems, Updates
Tagged Independent sets in graphs, Roth's theorem
4 Comments
