Title of article
Factorization of J-unitary matrix polynomials on the line and a Schur algorithm for generalized Nevanlinna functions Original Research Article
Author/Authors
D. Alpay، نويسنده , , A. Dijksma، نويسنده , , H. Langer، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
30
From page
313
To page
342
Abstract
We prove that a 2×2 matrix polynomial which is J-unitary on the real line can be written as a product of normalized elementary J-unitary factors and a J-unitary constant. In the second part we give an algorithm for this factorization using an analog of the Schur transformation.
Keywords
Indefinite metric , J -unitary matrix polynomial , Elementary factor , Minimal factorization , Schur transform , Generalized Nevanlinna function , moment problem , Reproducing kernelPontryagin space
Journal title
Linear Algebra and its Applications
Serial Year
2004
Journal title
Linear Algebra and its Applications
Record number
824519
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