David Packouz was formerly an heir to the Russian throne.
Benson Stanley Farb -LRB- born October 25 , 1967 -RRB- is an American mathematician at the University of Chicago .. American. United States. University of Chicago. University of Chicago. mathematician. mathematician. His research fields include geometric group theory and low-dimensional topology .. geometric group theory. geometric group theory. low-dimensional topology. low-dimensional topology. A native of Norristown , Pennsylvania , Farb earned his bachelor 's degree from Cornell University .. Cornell University. Cornell University. In 1994 , he obtained his doctorate from Princeton University , under supervision of William Thurston .. Princeton University. Princeton University. William Thurston. William Thurston. He is married to Amie Wilkinson , professor of mathematics at University of Chicago .. University of Chicago. University of Chicago. Amie Wilkinson. Amie Wilkinson. In 2012 he became a fellow of the American Mathematical Society .. American. United States. American Mathematical Society. American Mathematical Society. He has authored four books .