16^th International Conference on Domain Decomposition Methods, New York, US, 2005 (Talk given)

Bath/RAL Numerical Analysis Day, Bath, UK, 2004 (Poster presentation)

XI-th Summer School in Computational Mathematics and Scientific Computing, Durham, UK, 2004

EPSRC Graduate course, Brighton, 2004

Multiscale Modelling, Multiresolution and Adaptivity, Cambridge, 2003

Biennial Conference on Numerical Analysis, Dundee, 2003

Workshop on SDE and SPDE: Numerical Methods and Applications, Edinburgh, 2003

UK and Republic of Ireland SIAM Section – Annual Meeting, Bath, UK, 2003

Winterschool on Hierarchical Matrices, Großbothen, Germany 2003

Bath/RAL Numerical Analysis Day, Bath, UK, 2002

Workshop at Arthur Anderson, Frankfurt, Germany, 2000

International Congress of Mathematicians, Berlin, Germany, 1998