It was recently shown that the Quadrant Interlocking Factorization (QIF) techniques proposed by D.J. Evans and several co-workers are equivalent to block-LU factorization, with the exception of centrosymmentric matrices. In this work the complete equivalence between Quadrant Interlocking and LU factorization techniques is proved for centrosymmentric matrices as well. As a consequence all the questions addressed on the CIF can be stated in terms of block-LU factorization.

A note on the quadrant interlocking factorization

Codenotti B;
1988

Abstract

It was recently shown that the Quadrant Interlocking Factorization (QIF) techniques proposed by D.J. Evans and several co-workers are equivalent to block-LU factorization, with the exception of centrosymmentric matrices. In this work the complete equivalence between Quadrant Interlocking and LU factorization techniques is proved for centrosymmentric matrices as well. As a consequence all the questions addressed on the CIF can be stated in terms of block-LU factorization.
1988
Istituto di informatica e telematica - IIT
Istituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo" - ISTI
quadrant interlocking factorization
LU factorization
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/361534
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