scientific article; zbMATH DE number 3533576
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Publication:4110164
zbMath0342.47009MaRDI QIDQ4110164
Publication date: 1976
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Perturbation theory of linear operators (47A55) Groups and semigroups of linear operators (47D03) General theory of ordinary differential operators (47E05) General theory of partial differential operators (47F05) Research exposition (monographs, survey articles) pertaining to operator theory (47-02) Normed linear spaces and Banach spaces; Banach lattices (46Bxx) Special classes of linear operators (47Bxx) General theory of linear operators (47Axx) Inner product spaces and their generalizations, Hilbert spaces (46Cxx)
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