کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4639819 1341252 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A variant of the IDR(ss) method with the quasi-minimal residual strategy
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
A variant of the IDR(ss) method with the quasi-minimal residual strategy
چکیده انگلیسی

The IDR(ss) method proposed by Sonneveld and van Gijzen is an effective method for solving nonsymmetric linear systems, but usually with irregular convergence behavior. In this paper, we reformulate the relations of residuals and their auxiliary vectors generated by the IDR(ss) method in matrix form. Then, using this new formulation and motivated by other QMR-type methods, we propose a variant of the IDR(ss) method, called QMRIDR(ss), for overcoming the disadvantage of its irregular convergence behavior. Both fast and smooth convergence behaviors of the QMRIDR(ss) method can be shown. Numerical experiments are reported to show the efficiency of our proposed method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 236, Issue 5, 1 October 2011, Pages 621–630
نویسندگان
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