Recent papers:

Stucture of the unitary valuation algebra, ,Journal of Differential Geom. 72 (2006) , (arxiv version)

Criticality for the Gehring link problem (joint with J. Cantarella, R. Kusner, J. Sullivan and N. Wrinkle)  Geometry & Topology 10 (2006) 2045-2015 (arxiv version)

Circles minimize most knot energies (joint with A. Abrams, J. Cantarella, M. Ghomi and R. Howard) Topology 42 (2003), Pages 381-394 (arxiv version)

Convolution of convex valuations (with A. Bernig) Geometriae Dedicata (2006?), (arxiv version)

Theory of valuations on manifolds, III. Multiplicative structure in the general case (with S. Alesker). To appear in Trans. Amer. Math. Soc. (arxiv version)