Substructuring preconditioning for finite element approximations of second order elliptic problems. I. Nonconforming linear elements for the Poisson equation in a parallelepiped

Ewing, R.E.Kuznetsov, Y.A.Lazarov, R.D.Maliassov, S.2007-08-162007-08-161994-12https://hdl.handle.net/11299/2712Substructuring preconditioning for finite element approximations of second order elliptic problems. I. Nonconforming linear elements for the Poisson equation in a parallelepiped