zbMath0443.34008MaRDI QIDQ1144188
Manabu Naito
Publication date: 1979 Published in: Hiroshima Mathematical Journal (Search for Journal in Brave)
zbMATH Keywords
positive solutionsoscillatory solutionsfunctional differential equationsvariable delay
Mathematics Subject Classification ID
Nonlinear ordinary differential equations and systems (34A34) Qualitative theory for ordinary differential equations (34C99)
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