A New Preconditioning Technique of the LSQR Method for Solving the Linear Systems
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
DSGT02_012
تاریخ نمایه سازی: 19 تیر 1398
Abstract:
The LSQR method is an attractive method for solving the linear systems. However,LSQR may converge slowly or even stagnate due to a limited Krylov subspace. To ameliorate this drawback, a polynomial preconditioned variant of LSQR is presented.Numerical experiments from real applications are used to validate the e ectiveness ofthe proposed method.
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Authors
Maryam Mojarrab
Department of Mathematics, Faculty of Mathematics,University of Sistan and Baluchestan, Zahedan, Iran
Razie Sargazi
Department of Mathematics, Faculty of Mathematics,University of Sistan and Baluchestan, Zahedan, Iran