Werner-type matrix valued rational interpolation and its recurrence algorithms

Orthogonal rational matrix-valued functi

Orthogonal rational matrix-valued functions on the unit circle: Recurrence relations and a Favard-type theorem

✍ Bernd Fritzsche; Bernd Kirstein; Andreas Lasarow 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 384 KB

## Abstract This paper contains further steps towards a Szegö theory for orthogonal rational matrix‐valued functions on the unit circle 𝕋. It continues the investigations started in [18]–[20]. Hereby we are guided by former work of Bultheel, González–Vera, Hendriksen, and Njåstad on scalar orthogon