An efficient method for computing eigenvalues of a real normal matrix

207. B. B. Zhou and R. P. Brent, An efficient method for computing eigenvalues of a real normal matrix, Journal of Parallel and Distributed Computing 63 (2003), 638-648.

Preprint: dvi (31K), pdf (223K), ps (88K).

Abstract

Jacobi-based algorithms have attracted attention as they have a high degree of potential parallelism and may be more accurate than QR-based algorithms. In this paper we discuss how to design efficient Jacobi-like algorithms for eigenvalue decomposition of a real normal matrix. We introduce a block Jacobi-like method. This method uses only real arithmetic and orthogonal similarity transformations and achieves ultimate quadratic convergence. A theoretical analysis is conducted and some experimental results are presented.

Comments

Related papers are [153, 154, 159, 163].

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