Browsing Faculty of Natural and Agricultural Sciences by Subject "Rational matrix functions"
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A Toeplitz-like operator with rational matrix symbol having poles on the unit circle: Fredholm properties
(Springer, 2021)This paper concerns the analysis of an unbounded Toeplitz-like operator generated by a rational matrix function having poles on the unit circle T. It extends the analysis of such operators generated by scalar rational ... -
The twofold Ellis-Gohberg inverse problem for rational matrix functions on the real line
(Springer, 2020)From the mid-1980s R.L. Ellis, I. Gohberg and D.C. Lay wrote several papers on systems of orthogonal matrix polynomials and matrix functions, culminating in the monograph [3] by Ellis and Gohberg, where additional background ...