My research has been mainly in algebraic geometry, with an abiding interest in the study of algebraic cycles, particularly in the presence of singularities. I have established a number of results in this area, some obtained by making connections with Algebraic K-Theory.

I have wide research interests within algebraic geometry, ranging over classical algebraic geometry, algebraic cycles, algebraic groups, K-theory, commutative algebra, and Hodge theory, and like to work on problems lying in the overlaps between two or more of these fields, so that the perspectives of the different areas can be brought to bear simultaneously.