کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4642216 1341336 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Skew-symmetric methods for nonsymmetric linear systems with multiple right-hand sides
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Skew-symmetric methods for nonsymmetric linear systems with multiple right-hand sides
چکیده انگلیسی

By transforming nonsymmetric linear systems to the extended skew-symmetric ones, we present the skew-symmetric methods for solving nonsymmetric linear systems with multiple right-hand sides. These methods are based on the block and global Arnoldi algorithm which is formed by implementing orthogonal projections of the initial matrix residual onto a matrix Krylov subspace. The algorithms avoid the tediously long Arnoldi process and highly reduce expensive storage. Numerical experiments show that these algorithms are effective and give better practical performances than global GMRES for solving nonsymmetric linear systems with multiple right-hand sides.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 223, Issue 2, 15 January 2009, Pages 567–577
نویسندگان
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