I'm a professor at UC Santa Cruz currently on sabbatical at MSRI. I work mainly in differential geometry and dynamical systems, notably the classical Newtonian N-body problem. I am starting to dabble in algebraic geometry.
78 Dropping three bodies feb 3 '10
60 The Arnold – Serre debate jan 5 '14
38 What is an integrable system dec 31 '09
16 Nonconvex manhole covers jul 22 '10
14 Good differential equations text for undergraduates who want to become pure mathematicians jun 23 '10
14 Frobenius Theorem for subbundle of low regularity? jan 25 '10