Class a Operators and Their Extensions
نویسندگان
چکیده
In this paper, we study various properties of analytic extensions of class A operators. In particular, we show that every analytic extension of a class A operator has a scalar extension. As a corollary, we get that such an operator with rich spectrum has a nontrivial invariant subspace. Mathematics subject classification (2010): Primary 47A11, Secondary 47A15, 47B20.
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تاریخ انتشار 2013