Noussair, E. S.:
A Note on Second Order Nonlinear Oscillations
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Serie 8 59 (1975), fasc. n.1-2, p. 45-50, (English)
pdf (475 Kb), djvu (567 Kb). | MR 0447707 | Zbl 0351.34021
Sunto
L'Autore estendendo alcuni risultati relativi alle equazioni $u^{\prime\prime} + f(t,u) = 0$ trova condizioni sufficienti atte ad assicurare il carattere oscillatorio degli integrali dell'equazione $u^{\prime\prime} + f(t,u,u^{\prime}) = 0$
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