On the Location of the Degenerate Spectral Gaps of the Generalized Kronig-Penney Hamiltonians

DOI10.1619/FESI.53.311zbMath1221.34228OpenAlexW2085474622MaRDI QIDQ3062842

Hiroaki Niikuni

Publication date: 29 December 2010

Published in: Funkcialaj Ekvacioj (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1619/fesi.53.311

zbMATH Keywords

monodromy matrixspectral gappoint interactionsKronig-Penney Hamiltonian

Mathematics Subject Classification ID

General spectral theory of ordinary differential operators (34L05) Special ordinary differential equations (Mathieu, Hill, Bessel, etc.) (34B30) Boundary value problems with impulses for ordinary differential equations (34B37) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)

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