Fermi isospectrality of discrete periodic Schr\"odinger operators with separable potentials on $\mathbb{Z}^2$

DOI10.1007/S00220-022-04575-8zbMath1529.81066arXiv2208.06967MaRDI QIDQ6407841

Wencai Liu

Publication date: 14 August 2022

Mathematics Subject Classification ID

Estimates of eigenvalues in context of PDEs (35P15) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10) Discrete version of topics in analysis (39A12) Isospectrality (58J53) Semilinear elliptic equations with Laplacian, bi-Laplacian or poly-Laplacian (35J91)

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