求解特定鞍點(diǎn)問(wèn)題的改進(jìn)SOR-Like方法
[Abstract]:Saddle point problems are widely used in many engineering fields, such as hydrodynamics, electromagnetism, optimization problems, least squares problems, elliptic partial differential equations and so on. Based on the SOR class method and the HS splitting idea, the classical saddle point problem solution method is extended to the special saddle point problem solution. A new split iterative MSOR-Like method is presented to solve a class of saddle point systems with asymmetric blocks. The corresponding convergence analysis and optimal relaxation parameter selection method are given. Numerical examples show that for different preoptimal matrices, the MSORLike method has only the difference of convergence rate and has no effect on the convergence performance, and under the same calculation precision, The iterative effect of this method for solving special saddle point problem is better than that of conventional method.
【作者單位】: 東北大學(xué)理學(xué)院;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(11371081)
【分類號(hào)】:O241.6
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