Solution of f ( A ) x = b with projectionmethods for the matrix

نویسنده

  • Henk A. van der Vorst
چکیده

In this paper, we expand on an idea for using Krylov subspace information for the matrix A and the vector b. This subspace can be used for the approximate solution of a linear system f(A)x = b, where f is some analytic function. We will make suggestions on how to use this for the case where f is the matrix sign function.

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تاریخ انتشار 1999