Programs available for two-dimensional numerical modeling of the electromagnetic field
Václav Bezvoda, Karel Segeth (1992)
Acta Universitatis Carolinae. Mathematica et Physica
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Václav Bezvoda, Karel Segeth (1992)
Acta Universitatis Carolinae. Mathematica et Physica
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Radim Blaheta, P. Byczanski, Roman Kohut (2002)
Applications of Mathematics
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This paper concerns the composite grid finite element (FE) method for solving boundary value problems in the cases which require local grid refinement for enhancing the approximating properties of the corresponding FE space. A special interest is given to iterative methods based on natural decomposition of the space of unknowns and to the implementation of both the composite grid FEM and the iterative procedures for its solution. The implementation is important for gaining all benefits...
Karel Segeth (1983)
Aplikace matematiky
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The paper is concerned with the iterative solution of sparse linear algebraic systems by the Stone incomplete factorization. For the sake of clarity, the algorithm of the Stone incomplete factorization is described and, moreover, some properties of the method are derived in the paper. The conclusion is devoted to a series of numerical experiments focused on the choice of iteration parameters in the Stone method. The model problem considered showe that we can, in general, choose appropriate...