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A note on double splittings of different monotone matrices. (English) Zbl 1185.65058
The authors consider the double splitting of the form $A=P-R+S$, $P$ nonsingular of a given nonsingular matrix $A$ and derive for it comparison theorems involving the iteration matrix of the corresponding iterative method involving three successive approximations.

##### MSC:
 65F10 Iterative methods for linear systems
##### References:
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