Abstract
We consider the problem of estimating the magnitude of the error of an iterative linear solver after k iterations. Assuming that the initial error can be described using a probability distribution we derive L2-estimates for the magnitude of the error in the average case. In Part 1 the ideas are presented and applied to a simple splitting method, while Part 2 extends the same ideas to the conjugate gradient method.
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Golub, G.H., Melbø, H. A Stochastic Approach to Error Estimates for Iterative Linear Solvers: Part 1. BIT Numerical Mathematics 41, 977–985 (2001). https://doi.org/10.1023/A:1021985111111
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DOI: https://doi.org/10.1023/A:1021985111111