B. Vandereycken awarded one of the 2012 SIAM Outstanding Paper Prizes

Dr. Bart Vandereycken, of the CADMOS Chair in Numerical Algorithms and High-Performance Computing (ANCHP) shares the award with S. Vandewalle, of the Katholieke Universiteit Leuven, Belgium for their article
“A Riemannian Optimization Approach for Computing Low-Rank Solutions of Lyapunov Equations”, SIAM Journal on Matrix Analysis and Applications, Vol. 31, Issue 5 (2010), pp. 2553-2579
In their paper Vandereycken and Vanderwalle use a novel combination of concepts from differential geometry and numerical analysis to derive highly competitive algorithms for solving large-scale Lyapunov matrix equations. These equations play a pivotal role in model reduction techniques, enabling the inexpensive design, simulation, and optimization of highly complex systems in a broad area of engineering applications.
The "Society for Industrial and Applied Mathematics" (SIAM) is a big community of more than 14000 applied mathematicians, engineers and computer scientists. SIAM has been founded in 1952 to foster strong interactions between mathematics and other scientific and technological communities through membership activities, publication of journals and books, conferences and prizes.
The SIAM Outstanding Paper Prizes, first awarded in 1999, are awarded each year to three outstanding papers published in SIAM journals during the three years prior to the year of the award. Papers are selected for their originality, bringing a fresh look at an existing field or opening up new areas of applied mathematics.