Isotropic tori, complex germ and Maslov index, normal forms and quasimodes of multidimensional spectral problems

DOI10.1023/A:1010252029050zbMath1013.58014OpenAlexW3480256MaRDI QIDQ5951079

Vladimir V. Belov, O. S. Dobrokhotov, S. Yu. Dobrokhotov

Publication date: 12 December 2002

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

Full work available at URL: https://doi.org/10.1023/a:1010252029050

zbMATH Keywords

normal formsHamiltonian systeminvariant Lagrangian torusquadratic approximationquantization condition

Mathematics Subject Classification ID

Spectral problems; spectral geometry; scattering theory on manifolds (58J50) Asymptotic distributions of eigenvalues in context of PDEs (35P20) Schrödinger operator, Schrödinger equation (35J10) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Pseudodifferential and Fourier integral operators on manifolds (58J40)

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