Approximately reducing subspaces for unbounded linear operators
نویسندگان
چکیده
منابع مشابه
Linear Equations in Subspaces of Operators
Given a subspace S of operators on a Hilbert space, and given two operators X and Y (not necessarily in S), when can we be certain that there is an operator A in S such that AX = Y ? If there is one, can we find some bound for its norm? These questions are the subject of a number of papers, some by the present authors, and mostly restricted to the case where S is a reflexive algebra. In this pa...
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ژورنال
عنوان ژورنال: Journal of Functional Analysis
سال: 1976
ISSN: 0022-1236
DOI: 10.1016/0022-1236(76)90065-3