Field of Research Differential Geometry, Lie groups, dynamical systems and ergodic
theory.
Nonpositive curvature, symmetric spaces; semisimple groups,
their discrete subgroups and actions of these on manifolds; Tits buildings;
geodesic and horocycle flows, Anosov actions
Professional experience
1995 - present: Full Professor, Department of Mathematics, University of Michigan
1990 - 1995: Associate Professor, Department of Mathematics, University of Michigan
1989 - 1991: Associate Professor, Department of Mathematics, SUNY Stony Brook
1984 - 1989: Assistant Professor, Department of Mathematics, SUNY Stony Brook
Honors and awards
AMS Centennial Research Fellowship, 1990 - 1992
Sloan Foundation Fellow, 1988
Education
Ph.D. in Mathematics, 1983, University of Warwick, Coventry, Great Britain