Approximation of multilevel Toeplitz matrices via multilevel trigonometric matrix spaces and applications to preconditioning Stefano Serra Capizzano Pages: 187 - 213
A stable nonconforming quadrilateral finite element method for the stationary Stokes and Navier–Stokes equations Zhiqiang CaiJim DouglasXiu Ye Pages: 215 - 232
Mixed finite element methods¶and tree-cotree implicit condensation P. AlottoI. Perugia Pages: 233 - 248