Since Spring 2012:

Associate Editor for

SIAM/ASA Journal on Uncertainty Quantification

Since August 2003:

Associate Editor for

Journal of Computational and Applied Mathematics 

Guest Editor (with Carl de Boor, Christian Gout, Christophe Rabut) for a Special Issue of Numerical Algorithms:
Multivariate Approximation: Theory and Applications, Volume 48, Numbers 1-3, July 2008

Since December 2003:

Editor for

SIAM Journal on Numerical Analysis

Since April 2004:

Editor for

Numerische Mathematik

Since July 2007:

Editor for

Mathematical Methods in the Applied Sciences

Since December 2007:

Editor for

Advances in Adaptive Data Analysis (AADA)