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Publication:3672335
zbMath0522.34064MaRDI QIDQ3672335
Rita Iannacci, Espedito De Pascale
Publication date: 1983
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Equations involving nonlinear operators (general) (47J05) Periodic solutions to ordinary differential equations (34C25) Fixed-point theorems (47H10) Special ordinary differential equations (Mathieu, Hill, Bessel, etc.) (34B30) Functional-differential equations (including equations with delayed, advanced or state-dependent argument) (34K99)
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