On the Quadratic Integrability of Solutions of $d^2x/dt^2 + f(t)x = 0$.

DOI10.7146/math.scand.a-10711zbMath0143.11102OpenAlexW2531354675MaRDI QIDQ5518642

Sigbjørn Halvorsen

Publication date: 1964

Published in: MATHEMATICA SCANDINAVICA (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/165873

zbMATH Keywords

ordinary differential equations

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