4th European Summer School in Financial Mathematics ETH-Zürich & Ecole Polytechnique Zürich, September 5-9, 2011 http://www.cmap.polytechnique.fr/~euroschoolmathfi11/ Young researchers and PhD students are invited to apply before April 30, 2011. For details see http://www.cmap.polytechnique.fr/~euroschoolmathfi11/application.html ***