scientific article; zbMATH DE number 1293298
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Publication:4244752
zbMath0919.34073MaRDI QIDQ4244752
Publication date: 31 August 1999
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)
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