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On the completeness of the eigenfunctions of some classes of non- selfadjoint linear operators. (Russian) Zbl 0225.47008


MSC:

47A70 (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces
47A10 Spectrum, resolvent
47A56 Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones)

Citations:

Zbl 0235.47009
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