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zbMath0516.47008MaRDI QIDQ3663893

Hagen Neidhardt, Manfred Wollenberg, Volodymyr Koshmanenko

Publication date: 1983

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

Friedrichs extension wave operators method of orthogonal extension deficiency indexes definition of the perturbed operator

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55)

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