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A review on the inverse of symmetric tridiagonal and block tridiagonal matrices. (English) Zbl 0754.65029

The author gives a survey on characterizations of the inverses of tridiagonal and block tridiagonal matrices. He also gives results on the decay of the elements of the inverses. The results are obtained by using the Cholesky decomposition.

MSC:

65F05 Direct numerical methods for linear systems and matrix inversion
15A09 Theory of matrix inversion and generalized inverses
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