This is the website for the Erdös Number Project, which studies research collaboration among mathematicians.



The site is maintained by Jerry Grossman at Oakland University . Please address all comments, additions, and corrections to Jerry at grossman@oakland.edu

Erdös numbers have been a part of the folklore of mathematicians throughout the world for many years. For an introduction to our project, a description of what Erdös numbers are, what they can be used for, who cares, and so on, choose the “Information about the Erdös Number Project” link below. To find out who Paul Erdös is, look at this biography at the MacTutor History of Mathematics Archive, or choose the “Information about Paul Erdös” link below. Some useful information can also be found in this Wikipedia article, which may or may not be totally accurate.