Mathematics – Functional Analysis
Scientific paper
2012-01-11
Mathematics
Functional Analysis
14 pages
Scientific paper
This paper is a continuation of our previous investigation on the truncated matrix trigonometric moment problem in Ukrainian Math. J., 2011, 63, no.6, 786-797. In the present paper we obtain a Nevanlinna-type formula for this moment problem in a general case. We only assume that we have more than one moment, the moment problem is solvable and the problem has more than one solution. The coefficients of the corresponding matrix linear fractional transformation are explicitly expressed by the prescribed moments. Easy conditions for the determinacy of the moment problem are given.
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