کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4641912 1632054 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A condition for the nonsymmetric saddle point matrix being diagonalizable and having real and positive eigenvalues
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
A condition for the nonsymmetric saddle point matrix being diagonalizable and having real and positive eigenvalues
چکیده انگلیسی

This paper discusses the spectral properties of the nonsymmetric saddle point matrices of the form A=[ABT;-BC] with A symmetric positive definite, B full rank, and C   symmetric positive semidefinite. A new sufficient condition is obtained so that AA is diagonalizable with all its eigenvalues real and positive. This condition is weaker than that stated in the recent paper [J. Liesen, A note on the eigenvalues of saddle point matrices, Technical Report 10-2006, Institute of Mathematics, TU Berlin, 2006].

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 220, Issues 1–2, 15 October 2008, Pages 8–12
نویسندگان
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