Simon J. A. Malham is Associate Professor of Mathematics at Heriot-Watt University. After obtaining his Ph.D. from Imperial College London in 1993, he was a Visiting Assistant Professor at the University of Arizona (1993–6), a temporary lecturer at the University of Nottingham (1996–8) and Imperial (1998–2000), before joining Heriot-Watt as a lecturer in 2000. His research interests include Navier-Stokes regularity, the stability of nonlinear travelling fronts, computational spectral theory, the optimal simulation of stochastic differential equations including Lie group methods, Hopf algebra analysis and almost-exact methods, Grassmannian flows and the representation and integrability of non-commutative local and nonlocal nonlinear partial differential systems.