On May 19, at 7:30 P.M. at Stanford University, there will be a public lecture given by renowned mathematician Peter Sarnak. He will be discussing Hilbert’s 11th problem, which starts with the works of Lagrange, Fermat, and Gauss about which numbers can be represented as the sum of 2, 3, or 4 squares, but extends it to quadratic equations. This problem was formulated in 1900 and despite significant progress remains unsolved. Dr. Peter Sarnak is a professor at Princeton University who his known for his work in number theory.