How to make the Lanczos algorithm converge slowly
How to make the Lanczos algorithm converge slowly
复制标题
如何让Lanczos算法收敛缓慢
DOI:
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发表时间:
1979
期刊:
影响因子:
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通讯作者:
D. Scott
中科院分区:
文献类型:
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作者:
D. Scott
Abstract : The Paige style Lanczos algorithm is an iterative method for finding a few eigenvalues of large sparse symmetric matrices. Some beautiful relationships among the elements of the eigenvectors of a symmetric tridiagonal matrix are used to derive a perverse starting vector which delays convergence as long as possible. Why such slow convergence is never seen in practice is also examined. (Author)