William French Sawin (born in October 1993) is the Fernholz Professor of Mathematics at Princeton University specialising in number theory and algebraic geometry.
[1] He received both his high school diploma and his BSc degree in mathematics and economics from Yale University in 2011.
[1] He earned his PhD degree from Princeton University in 2016 on "A Tannakian Category and a Horizontal Equidistribution Conjecture for Exponential Sums" under the supervision of Nick Katz.
[5] Sawin found important applications of étale cohomology to the theory of exponential sums over finite fields.
He also uses classical counting techniques in analytic number theory in the study of cohomology of spaces that are of interest in algebraic geometry.