Criteria of Non-Degeneracy for the Wave Equation

DOI10.2307/2372327zbMath0035.18201OpenAlexW2318584926MaRDI QIDQ5793007

Philip Hartman, Aurel Wintner

Publication date: 1948

Published in: American Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2307/2372327

zbMATH Keywords

Ordinary differential equations

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