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Optimal block diagonal scaling of block 2-cyclic matrices |
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| Authors: | Stanley C Eisenstat John W Lewis Martin H Schultz |
| Institution: | Department of Computer Science Yale University New Haven, Connecticut 06520 USA |
| Abstract: | We describe a class of optimal block diagonal scalings (preconditionings) of a symmetric positive definite block 2-cyclic matrix, generalizing a result of Forsythe and Strauss 1] for (point) 2-cyclic matrices. |
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