Title of article :
A note on spectra of optimal and superoptimal preconditioned matrices Original Research Article
Author/Authors :
Che-Man Cheng، نويسنده , , Xiaoqing Jin، نويسنده , , Seak-Weng Vong، نويسنده , , Wei Wang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
In this short note, it is proved that given any positive definite Hermitian matrix, the eigenvalues of the superoptimal preconditioned matrix do not exceed the corresponding eigenvalues of the optimal preconditioned matrix.
Keywords :
Preconditioned matrix , Superoptimal preconditioner , Spectrum , Optimal preconditioner
Journal title :
Linear Algebra and its Applications
Journal title :
Linear Algebra and its Applications
