Circulant Preconditioners for Toeplitz Matrices with Positive continuous Generating Functions
نویسندگان
چکیده
منابع مشابه
Circulant Preconditioners for Toeplitz Matrices with Piecewise Continuous Generating Functions Man-chung Yeung and Raymond
We consider the solution of «-by-« Toeplitz systems T„x = b by preconditioned conjugate gradient methods. The preconditioner Cn is the T. Chan circulant preconditioner, which is defined to be the circulant matrix that minimizes \\B„ T„\\f over all circulant matrices B„ . For Toeplitz matrices generated by positive In -periodic continuous functions, we have shown earlier that the spectrum of the...
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ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 1992
ISSN: 0025-5718
DOI: 10.2307/2153030