Estimating the spectral norm of the inverse of a matrix with the Gaus-Jordan algorithm / by W. HoffmannNUMVEC FORTRAN library manual : chapter: Simultaneous linear equations Update # 1 / W. HoffmannIterative algorithms for Gram-Schmidt orthogonalization / by W. HoffmannBasic transformations in linear algebra for vector computing / Walter HoffmannNUMVEC FORTRAN library manual : chapter: Simultaneous linear equations / W. HoffmannApproximating Runge-Kutta matrices by triangular matrices / W. Hoffmann, J.J.B. de SwartGaussian elimination algorithms on a vector computer / by W. HoffmannNUMVEC FORTRAN Library manual chapter : simultaneous linear equations / W. Hoffmann, W.M. Lioen
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Rehabilitation of the Gauss-Jordan algorithm / by T.J. Dekker and W. HoffmannALGOL 60 procedures in numerical algebra / by T.J. Dekker and W. HoffmannALGOL 60 procedures in numerical algebra / T.J. DekkerApplication of the over-set grid technique to a model singular perturbation problem / E.D. Havik, P.W. Hemker, W. HoffmannApplication of the over-set grid technique to a model singular perturbation problem / by E.D. Havik, P.W. Hemker & W. HoffmannTwo-level Fourier analysis of a multigrid approach for discontinuous Galerkin discretisation / P.W. Hemker, W. Hoffmann, M.H. van RaalteFourier two-level analysis for discontinuous Galerkin discretization with linear elements / P.W. Hemker, W. Hoffmann, M.H. van RaalteDiscontinuous Galerkin discretisation with embedded boundary conditions / P.W. Hemker, W. Hoffmann, M.H. van RaalteAlgol 60 procedures in numerical algebra / by T.J. Dekker