Harald Helfgott

Career Helfgott was a post-doctoral Gibbs Assistant Professor at Yale University from 2003 to 2004.

In 2017 Helfgott spotted a subtle error in the proof of the quasipolynomial time algorithm for the graph isomorphism problem that was announced by László Babai in 2015. Babai subsequently fixed his proof.

Awards In 2008, Helfgott was awarded the Leverhulme Mathematics Prize for his work on number theory, diophantine geometry and group theory.

In June 2010, Helfgott received the Whitehead Prize by the London Mathematical Society for his contributions to number theory, including work on Möbius sums in two variables, integral points on elliptic curves, and for his work on growth and expansion of multiplication of sets in SL2(Fp).

In February 2011, Helfgott was awarded the Adams Prize jointly with Tom Sanders.

In August 2013, Helfgott received an Honorary Professorship from National University of San Marcos in Lima, Peru.

In 2014, he was an invited speaker at the International Congress of Mathematicians in Seoul and in 2015 he won a Humboldt Professorship.

Publications