کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4645466 | 1342037 | 2011 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
GMRES with adaptively deflated restarting and its performance on an electromagnetic cavity problem
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
ریاضیات محاسباتی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: GMRES with adaptively deflated restarting and its performance on an electromagnetic cavity problem GMRES with adaptively deflated restarting and its performance on an electromagnetic cavity problem](/preview/png/4645466.png)
چکیده انگلیسی
GMRES with deflated restarting, denoted by GMRES-DR(m,k), is a variant of restarted GMRES for solving nonsymmetric linear systems, which improves the convergence of restarted GMRES by weakening the influence of the eigenvalues incurring poor numerical performance. However, it is difficult to determine the deflation parameter k. In this paper, we present a new deflation strategy which determines k dynamically in different cycles. Numerical results for an electromagnetic cavity problem show that the deflation strategy is efficient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Numerical Mathematics - Volume 61, Issue 9, September 2011, Pages 977-988
Journal: Applied Numerical Mathematics - Volume 61, Issue 9, September 2011, Pages 977-988