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- W2063156073 abstract "We are interested in the numerical solution of the complex large linear system, (σ2A+σB+C)x=f(σ), for many, possibly a few hundreds, values of the complex parameter σ in a wide range. We assume that A, B and C are large, sparse, symmetric matrices, as is the case in several application problems. In particular, we focus on the following structured right-hand side, f(σ)=FΦ(σ), where F is a (tall) rectangular matrix whose entries are independent of σ. We propose to approximate the solution x=x(σ) by means of a projection onto a single vector subspace, and a subsequent solution of the reduced dimension problem, for all values of interest of the parameter σ. Numerical experiments report the effectiveness of our approach on real application problems. Copyright © 2005 John Wiley & Sons, Ltd." @default.
- W2063156073 created "2016-06-24" @default.
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- W2063156073 date "2005-01-01" @default.
- W2063156073 modified "2023-09-27" @default.
- W2063156073 title "Numerical solution of parameter-dependent linear systems" @default.
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- W2063156073 doi "https://doi.org/10.1002/nla.442" @default.
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