Approximation by Analytic Matrix Functions: The Four Block Problem
نویسندگان
چکیده
منابع مشابه
2 D ec 1 99 5 APPROXIMATION BY ANALYTIC MATRIX FUNCTIONS . THE FOUR BLOCK PROBLEM VLADIMIR
The problem of approximating a given scalar function φ on the unit circle T uniformly by functions analytic in the unit disk D has been attracting analysts for a long time (see [Kha], [RSh], [Ne], [AAK1-2], [CJ], [PKh]). It was shown in [Kha] that for a continuous function φ such a best approximation is unique while it is not unique in the general case. Later it turned out that this problem is ...
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ژورنال
عنوان ژورنال: Journal of Functional Analysis
سال: 1997
ISSN: 0022-1236
DOI: 10.1006/jfan.1996.3073