Tag Archives: Paul Erdos

Some old and new problems in combinatorics and geometry

Posted on July 6, 2013 by

Paul Erdős in Jerusalem, 1933  1993 I just came back from a great Erdős Centennial conference in wonderful Budapest. I gave a lecture on old and new problems (mainly) in combinatorics and geometry (here are the slides), where I presented twenty … Continue reading →

Posted in Combinatorics, Geometry, Open problems | Tagged | 4 Comments

Erdős’ Birthday

Posted on March 27, 2013 by

Paul Erdős was born on March 26, 1913 2013 a hundred years ago. This picture (from Ehud Friedgut’s homepage) was taken in September ’96 in a Chinese restaurant in Warsaw, a few days before Paul Erdős passed away. The other diners are Svante Janson, Tomasz Łuczack and … Continue reading →

Posted in Combinatorics | Tagged | 3 Comments

Extremal Combinatorics I: Extremal Problems on Set Systems

Posted on May 1, 2008 by

The “basic notion seminar” is an initiative of David Kazhdan who joined HU math department  around 2000. People give series of lectures about basic mathematics (or not so basic at times). Usually, speakers do not talk about their own research and not even … Continue reading →

Posted in Open problems | Tagged , , , , , | 10 Comments