I am a Professor of Mathematics at Michigan State University.

My research is in geometric analysis and its connections with mathematical physics. This field involves intriguing combinations of ideas and techniques from several different fields, including algebraic geometry, differential geometry, topology, and partial differential equations. My recent work uses analytic methods to study Gromov–Witten invariants.

I received my PhD in Mathematics from Stanford in 1980 and have taught at Harvard, Brandeis, and Michigan State Universities.