Kissing number problem
we improve the kissing numbers in dimensions 25 through 31.
...from the description of a talk to be given on Monday, March 7, 2011 at Northeastern University, by mathematician Abhinav Kumar (whose Erdös Number is 2 — a fact of interest to those interested in Erdös Numbers.
Erdős number http://en.wikipedia.org/wiki/Erd%C5%91s_number
List of people by Erdős number
MathSciNet: Collaboration distance - American Mathematical Society
The Erdös Number Project http://www.oakland.edu/enp/