Spectrum of perturbed Laplace operator on the fundamental domain of a discrete group on the Lobachevskij plane

zbMATH Open0551.35064MaRDI QIDQ801216

V. P. Smolich

Publication date: 1983

Published in: Moscow University Mathematics Bulletin (Search for Journal in Brave)

zbMATH Keywords

spectrumfundamental domainfinite multiplicitydiscrete group on the Lobachevskij planediscrete set of eigenvaluesperturbed Laplace operator

Mathematics Subject Classification ID

General topics in linear spectral theory for PDEs (35P05) Asymptotic distributions of eigenvalues in context of PDEs (35P20) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

Related Items (1)

Spectrum of the Laplace-Beltrami operator for certain congruence subgroups of the modular group

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