scientific article

zbMath0547.35096MaRDI QIDQ3338674

Johannes Sjöstrand

Publication date: 1984

Full work available at URL: http://www.numdam.org/item?id=SEDP_1983-1984____A7_0

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zbMATH Keywords

Schrödinger operatorsresolvent kernelspectral theorycompact Riemannian manifoldinteraction matrixnearly zero eigenvalueperturbation of the potential

Mathematics Subject Classification ID

Asymptotic distributions of eigenvalues in context of PDEs (35P20) Spectrum, resolvent (47A10) Schrödinger operator, Schrödinger equation (35J10) Perturbation theories for operators and differential equations in quantum theory (81Q15) Global Riemannian geometry, including pinching (53C20) Perturbations in context of PDEs (35B20)

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Non-real eigenvalues for \(\mathcal{PT}\)-symmetric double wells

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