“…The special issue for this years conference consists of the nine papers 1‐9 . In Reference 1, Murray and Weinzierl develop a stabilized asynchronous FAC Multigrid solver for spacetrees, that is, meshes as they are constructed from octrees and quadtrees. Paper, 2 by Farrell et al, concerns the local Fourier analysis of the additive Vanka type relaxation schemes that are typical choices for the discretized Stokes equations.…”