age ~43
from Los Angeles, CA
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Grigori Perelman proved the Poincare conjecture and then refused a mil...
GUEST BIO: Jordan Ellenberg is a mathematician and author of Shape and...
Grigori Yakovlevich Perelman is buying milk and bread in a supermarket...
The world's smartest man, who solved one of the biggest mysteries of m...
In this short clip, Dr. Alex Perelman, gastroenterologi... practicing...