TITLE:
BLU Factorization for Block Tridiagonal Matrices and Its Error Analysis
AUTHORS:
Chi-Ye Wu
KEYWORDS:
Block Tridiagonal Matrices; BLU Factorization; Error Analysis; BLAS3
JOURNAL NAME:
Advances in Linear Algebra & Matrix Theory,
Vol.2 No.4,
December
17,
2012
ABSTRACT: A block representation of the BLU factorization for block tridiagonal matrices is presented. Some properties on the factors obtained in the course of the factorization are studied. Simpler expressions for errors incurred at the process of the factorization for block tridiagonal matrices are considered.