Heads of division Kristian Bjerklöv Head of Analysis, Dynamics, Geometry, Number Theory and PDE bjerklov@math.kth.se , +4687907164 Profile Jennifer Ryan Head of Numerical Analysis, Optimization and Systems Theory jryan@kth.se Profile Johan Håstad Head of Algebra, Combinatorics and Topology johanh@kth.se , +4687906691 Profile Henrik Hult Head of Probability, Mathematical Physics and Statistics hult@kth.se , +4687906911 Profile