Abstract
In this chapter we give the analogue of the theory from Chapter 6 concerning rational matrix functions with J-unitary values on the imaginary axis for the case J-unitary values on the unit circle. The developments here parallel those in Chapter 6 for the case of the imaginary axis. The treatment of the null and pole structure at infinity is given additional attention. As in Chapter 6, also here J is a fixed m × m signature matrix.
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Notes for Part I
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Ball, J.A., Gohberg, I., Rodman, L. (1990). Rational Matrix Functions with J-Unitary Values on the Unit Circle. In: Interpolation of Rational Matrix Functions. Operator Theory: Advances and Applications, vol 45. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-7709-1_8
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DOI: https://doi.org/10.1007/978-3-0348-7709-1_8
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-7711-4
Online ISBN: 978-3-0348-7709-1
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