On the discrete spectrum of a boundary value problem

DOI10.1007/BF00974503zbMath0723.34071MaRDI QIDQ757718

Vyacheslav N. Pivovarchik

Publication date: 1990

Published in: Siberian Mathematical Journal (Search for Journal in Brave)

zbMATH Keywords

number of eigenvaluesabsence of the discrete spectrumboundedness of the spectrumwave propagation in inhomogeneous media

Mathematics Subject Classification ID

General spectral theory of ordinary differential operators (34L05)

Cites Work

• Multiplicity of the spectrum of representations connected with integrable G-invariant Hamiltonian systems
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