A Study of Lanczos-Type Iterations for Symmetric Indefinite Linear Systems
Please always quote using this URN: urn:nbn:de:0297-zib-1029
- The Lanczos iteration for symmetric indefinite linear systems seems to be well--known for quite a while. However, in order to modify it with the aim of improved performance, the present paper studies certain aspects in terms of an adjoint scalar three--term recurrence. Thus, at least a different view is opened. Moreover, an alternative $3n$--implementation in terms of the Euclidean orthogonal basis has been found that easily permits generalizations. The study is understood as a start--off for further numerical investigations and experiments.
Author: | Peter Deuflhard |
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Document Type: | ZIB-Report |
Date of first Publication: | 1993/02/25 |
Series (Serial Number): | ZIB-Report (SC-93-06) |
ZIB-Reportnumber: | SC-93-06 |