Helmut Hofer
Helmut Hermann W. Hofer is a German-American mathematician, one of the founders of the area of symplectic topology.
He is a member of the National Academy of Sciences, and the recipient of the 1999 Ostrowski Prize
and the 2013 Heinz Hopf Prize. Since 2009, he is a faculty member at the Institute for Advanced Study in Princeton, New Jersey. He currently works on symplectic geometry, dynamical systems, and partial [differential equations]. His contributions to the field include Hofer geometry. Hofer was elected to the American [Academy of Arts and Sciences] in 2020.
He was an invited speaker at the International Congress of Mathematicians in 1990 in Kyoto and a plenary speaker at the ICM in 1998 in Berlin.
He is currently an editor of Annals of Mathematics.