کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8960217 | 1646389 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Block triangular preconditioners for stabilized saddle point problems with nonsymmetric (1,1)-block
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We study the performance of a class of block triangular preconditioners for saddle point systems with nonsymmetric positive definite (1,1)-block. The presented results incorporate the established results in Zhang and Zhao (2018) where a (parameter-dependent) preconditioner was suggested to solve the mentioned saddle point systems. The performance of the preconditioner in conjunction with Krylov subspace methods is examined for solving a test problem arising from stabilized finite element discretizations of the Oseen problem. The reported numerical experiments show that there exist parameter free preconditioners which outperform the preconditioner proposed in the earlier referred work.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 76, Issue 6, 15 September 2018, Pages 1544-1553
Journal: Computers & Mathematics with Applications - Volume 76, Issue 6, 15 September 2018, Pages 1544-1553
نویسندگان
Seyyed Hassan Azizi Chaparpordi, Fatemeh Panjeh Ali Beik, Davod Khojasteh Salkuyeh,