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Wittum, Gabriel 1956-

Overview
Works: 71 works in 135 publications in 2 languages and 841 library holdings
Genres: Conference proceedings 
Roles: Editor
Classifications: QA377, 004.3
Publication Timeline
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Publications about Gabriel Wittum
Publications by Gabriel Wittum
Most widely held works by Gabriel Wittum
Numerical solution of elliptic differential equations by reduction to the interface by Boris N Khoromskij( Book )
6 editions published in 2004 in English and held by 162 libraries worldwide
This is the first book that deals systematically with the numerical solution of elliptic partial differential equations by their reduction to the interface via the Schur complement. Inheriting the beneficial features of finite element, boundary element and domain decomposition methods, our approach permits solving iteratively the Schur complement equation with linear-logarithmic cost in the number of the interface degrees of freedom. The book presents the detailed analysis of the efficient data-sparse approximation techniques to the nonlocal Poincaré-Steklov interface operators associated with the Laplace, biharmonic, Stokes and Lamé equations. Another attractive topic are the robust preconditioning methods for elliptic equations with highly jumping, anisotropic coefficients. A special feature of the book is a unified presentation of the traditional iterative substructuring and multilevel methods combined with modern matrix compression techniques applied to the Schur complement on the interface
Multigrid methods V : proceedings of the Fifth European Multigrid Conference, held in Stuttgart, Germany, October 1-4, 1996 by W Hackbusch( Book )
8 editions published in 1998 in English and held by 101 libraries worldwide
This volume contains a selection from the papers presented at the Fifth European Multigrid Conference, held in Stuttgart, October 1996. All contributions were carefully refereed. The conference was organized by the Institute for Computer Applications (ICA) of the University of Stuttgart, in cooperation with the GAMM Committee for Scientific Computing, SFB 359 and 404 and the research network WiR Ba-Wü. The list of topics contained lectures on Multigrid Methods: robustness, adaptivity, wavelets, parallelization, application in computational fluid dynamics, porous media flow, optimisation and computational mechanics. A considerable part of the talks focused on algebraic multigrid methods
Filternde Zerlegungen : schnelle Löser für grosse Gleichungssysteme by Gabriel Wittum( Book )
4 editions published between 1990 and 1992 in German and held by 50 libraries worldwide
Adaptive methods--algorithms, theory and applications : proceedings of the Ninth GAMM-Seminar, Kiel, January 22-24, 1993 by GAMM-Seminar( Book )
4 editions published in 1994 in English and held by 45 libraries worldwide
Incomplete decomposition (ILU) : algorithms, theory, and applications : proceedings of the Eighth GAMM-Seminar, Kiel, January 24-26, 1992 by GAMM-Seminar( Book )
1 edition published in 1993 in English and held by 45 libraries worldwide
Numerical treatment of coupled systems : proceedings of the Eleventh GAMM-Seminar Kiel, January 20-22, 1995 by W Hackbusch( Book )
4 editions published in 1995 in English and held by 40 libraries worldwide
Fast solvers for flow problems : proceedings of the Tenth GAMM-Seminar, Kiel, January 14-16, 1994 by GAMM-Seminar( Book )
3 editions published in 1995 in English and held by 38 libraries worldwide
Numerical treatment of multi-scale problems : proceedings of the 13th GAMM-Seminar, Kiel, January 24-26, 1997 by GAMM-Seminar( Book )
2 editions published in 1999 in English and held by 36 libraries worldwide
Distributive Iterationen für indefinite Systeme als Glätter in Mehrgitterverfahren am Beispiel der Stokes- und Navier-Stokes-Gleichungen mit Schwerpunkt auf unvollständigen Zerlegungen by Gabriel Wittum( Book )
9 editions published between 1986 and 1988 in German and Undetermined and held by 31 libraries worldwide
Numerische Algorithmen auf Transputer-Systemen ( Book )
2 editions published in 1993 in German and held by 31 libraries worldwide
Boundary elements : implementation and analysis of advanced algorithms : proceedings of the Twelfth GAMM-Seminar, Kiel, January 19-21, 1996 by W Hackbusch( Book )
3 editions published in 1996 in English and German and held by 30 libraries worldwide
Competence in high performance computing 2010 proceedings of an International Conference on Competence in High Performance Computing, June 2010, Schloss Schwetzingen, Germany by Christian Bischof( Computer File )
6 editions published in 2012 in English and held by 22 libraries worldwide
Annotation
Parallel solution methods for differential equations by Georg Bader( Book )
1 edition published in 1992 in English and held by 6 libraries worldwide
Spektralverschobene Iterationen by Gabriel Wittum( Book )
3 editions published in 1995 in German and held by 6 libraries worldwide
Transforming smoothers for optimization saddlepoint problems by Volker Schulz( Book )
1 edition published in 1999 in English and held by 5 libraries worldwide
Multi-grid methods : an introduction by Gabriel Wittum( Book )
4 editions published in 1995 in German and English and held by 5 libraries worldwide
Frequency filtering for elliptic interface problems with Lagrange multipliers by Boris N Choromskij( Book )
2 editions published in 1995 in English and held by 5 libraries worldwide
The use of fast solvers in computational fluid dynamics by Gabriel Wittum( Book )
2 editions published in 1989 in German and English and held by 5 libraries worldwide
Downwind numbering : a robust multigrid method for convection diffusion problems on unstructured grids by Jurgen Bey( Book )
4 editions published in 1995 in English and German and held by 5 libraries worldwide
 
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Alternative Names
Wittum, G.
Wittum, Gabriel
Languages
English (48)
German (22)
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