EXPLICIT AND ASYMPTOTIC FORMULAS FOR LDM(T) FACTORIZATION OF BANDED TOEPLITZ MATRICES

被引:5
作者
HAFNER, JL
机构
[1] IBM Research Division, Almaden Research Center, San Jose, California, 95120-6099
关键词
D O I
10.1016/0024-3795(95)94777-5
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study the LDM(t) factorization of banded Toeplitz matrices. We show that, under fairly general conditions, the L, M, and D factors exhibit exponential convergence along diagonals. We also give explicit formulas for the limiting values. Our method of proof involves a generalization to matrices of the theory of continued fractions of quadratic irrationals.
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页码:97 / 126
页数:30
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