QX factorization of centrosymmetric matrices

A. Steele, J. Yalim, Bruno Welfert

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

We show how the factorization A=QX, introduced in Burnik (2015) [2], of a real centrosymmetric m×n matrix A into a centrosymmetric orthogonal m×m matrix Q and a centrosymmetric m×n matrix X with a double-cone structure can be directly obtained via standard QR factorizations of two matrices about half the size of A. Examples and a MATLAB code are included.

Original languageEnglish (US)
Pages (from-to)11-16
Number of pages6
JournalApplied Numerical Mathematics
Volume134
DOIs
StatePublished - Dec 2018

Keywords

  • Centrosymmetry
  • QR factorization

ASJC Scopus subject areas

  • Numerical Analysis
  • Computational Mathematics
  • Applied Mathematics

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