University of Toronto Special Colloquium Friday 16 February, 1:10-2pm 2195 Bahen Center SPEAKER: Joachim Krieger (Harvard University) TITLE: A new type of singularity formation in certain critical nonlinear wave equations ABSTRACT: A discussion of recent work in collaboration with W. Schlag and D. Tataru on singularity development for the critical wave maps equation with target S^{2} as well as for the focussing quintic wave equation on R^{3+1}. ------------------------------------------------------------------ University of Toronto PDE/Applied Math/Analysis Seminar http://www.math.toronto.edu/appmath/ 2006-2007 organizers: Pieter Blue pblue@ math.toronto.edu Almut Burchard almut@ math.toronto.edu Robert McCann mccann@ math.toronto.edu ------------------------------------------------------------------