On the bifurcation of thresholds of the essential spectrum with a spectral singularity
DOI10.1134/s0012266123020118zbMath1527.81055OpenAlexW4376481097WikidataQ122422172 ScholiaQ122422172MaRDI QIDQ6168936
Dmitry A. Zezyulin, Denis I. Borisov
Publication date: 11 July 2023
Published in: Differential Equations (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1134/s0012266123020118
Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) General spectral theory of ordinary differential operators (34L05) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10) Singularities, monodromy and local behavior of solutions to ordinary differential equations in the complex domain, normal forms (34M35) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15) Bifurcation of solutions to ordinary differential equations involving randomness (34F10)
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