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Basis Properties of the System of Root Functions of the Sturm–Liouville Operator with Degenerate Boundary Conditions: II


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Abstract

The spectral problem for the Sturm–Liouville operator with arbitrary complex-valued potential q(x) of the class L1(0, π) and degenerate boundary conditions is considered. We prove that the system of root functions of this operator is not a basis in the space L2(0, π).

About the authors

A. S. Makin

Moscow Technological University (MIREA)

Author for correspondence.
Email: alexmakin@yandex.ru
Russian Federation, Moscow, 119454

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