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Publication:3752961
zbMath0612.47016MaRDI QIDQ3752961
Publication date: 1986
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Riesz basissystems of eigen- and associated functions of a quadratic pencil of not self-adjoint differential operators
General theory of ordinary differential operators (47E05) Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) (47A56) General theory of partial differential operators (47F05) (Semi-) Fredholm operators; index theories (47A53)
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