On Estimation of the  A ‐norm of the Error in CG and PCG | Zendy

Strakoš Zdeněk | Zendy; Tichý Petr | Zendy

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On Estimation of the A ‐norm of the Error in CG and PCG

Author(s) -

Strakoš Zdeněk,

Tichý Petr

Publication year - 2003

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.200310545

Subject(s) - conjugate gradient method , norm (philosophy) , conjugate , mathematics , extension (predicate logic) , simple (philosophy) , conjugate residual method , derivation of the conjugate gradient method , computer science , mathematical optimization , mathematical analysis , gradient descent , artificial intelligence , philosophy , epistemology , programming language , artificial neural network

We concentrate on the preconditioned conjugate gradient method and describe a simple and numerically well‐justified way of estimation of the A‐norm of the error. In this way this note represents an extension of [5] and its aim is to mediate the analytic results from [5] to practical users of the preconditioned conjugate gradient method.

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