کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4629415 1340580 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A note on the positive stable block triangular preconditioner for generalized saddle point problems
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
A note on the positive stable block triangular preconditioner for generalized saddle point problems
چکیده انگلیسی

In this paper, we give a sharp eigenvalue bound for the positive stable block triangular preconditioned matrix presented in a recent paper by Cao [Z.-H. Cao, Positive stable block triangular preconditioners for symmetric saddle point problems, Appl. Numer. Math. 57 (2007) 899–910]. The intervals containing these eigenvalues of the preconditioned matrix remove the origin, which is benefit for further study. Numerical experiments of a model Stokes problem are presented to show the estimate and the effectiveness of the positive stable block triangular preconditioners.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 218, Issue 22, 15 July 2012, Pages 11075–11082
نویسندگان
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