scientific article; zbMATH DE number 3278544

zbMath0174.39403MaRDI QIDQ5562823

L. I. Nesterenko

Publication date: 1968

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

ordinary differential equations

Mathematics Subject Classification ID

Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)

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