Signatures of three coalescing eigenfunctions

DOI10.1088/1751-8113/45/2/025303zbMath1235.81079arXiv1110.1489OpenAlexW3103498093MaRDI QIDQ3118769

Eva-Maria Graefe, Gilles Demange

Publication date: 5 March 2012

Published in: Journal of Physics A: Mathematical and Theoretical (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1110.1489

Mathematics Subject Classification ID

Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10) Perturbation theories for operators and differential equations in quantum theory (81Q15)

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