1 results match your criteria: "Austria. Center for Computational Science and E-systems[Affiliation]"
Condition number estimation of preconditioned matrices.
PLoS One
February 2016
International Data Centre, the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization, Vienna, Austria. Center for Computational Science and E-systems, Japan Atomic Energy Agency, Ibaraki, Japan.
The present paper introduces a condition number estimation method for preconditioned matrices. The newly developed method provides reasonable results, while the conventional method which is based on the Lanczos connection gives meaningless results. The Lanczos connection based method provides the condition numbers of coefficient matrices of systems of linear equations with information obtained through the preconditioned conjugate gradient method.
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