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Title
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روش هاي GMRES پيش شرط سازي شده با روش متعامد سازي ناقص گيونز براي مسايل كمتزين توان هاي دوم تنك و بزرگ
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Type
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Thesis
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Keywords
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Least squares problems, preconditioning, Givens factorization.
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Abstract
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The least squares problems in numerical analysis is one of the most important issues. In this thesis, we proposed to preconditioned the GMRES method by using incomplete Givens orthogonalization (IGO) method for the solution of large sparse linear least squares problems.
Theoretical analysis shows that the preconditioner the satisfies the sufficient condition that can guarantee that the preconditioned GMRES method will never break down and always give the least- squares solution of the original problem.
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Researchers
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Alireza Ataei (Primary advisor) , Saeed Karimi (Advisor)
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