Semiiterative methods for linear equations
Mathematica Applicanda, Tome 21 (1992) no. 35.

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The authors consider the numerical solution of Ax=f, where A is a bounded invertible linear operator in a complex Banach space, (i) using only premultiplication of vectors by A and (ii) forming linear combinations of known vectors. Essentially, this involves the approximation of A^(−1) by polynomials in A. Several methods of computing this approximation are investigated.
Mots-clés : Equations with linear operators 
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D. van Ban; K. Moszyński; A. Pokrzywa. Semiiterative methods for linear equations. Mathematica Applicanda, Tome 21 (1992) no. 35. https://geodesic-test.mathdoc.fr/item/MA_1992__21_35_292593/