Parameter modified versions of preconditioning and iterative inner product free refinement methods for two-by-two block matrices
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DOI: 10.1016/j.laa.2019.07.024
Abstract: Abstract A special two-by-two block matrix form arises in many important applications. Extending earlier results it is shown that parameter modified versions of a very efficient preconditioner does not improve its rate of convergence. This… read more here.
Keywords: two two; modified versions; two block; parameter modified ... See more keywords