Chen, Lu-San and Yu, Fong-Ming:
Sufficient conditions for nonoscillation of forced n-th order retarded functional differential equations
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Serie 8 65 (1978), fasc. n.3-4, p. 100-103, (English)
pdf (311 Kb), djvu (183 Kb). | Zbl 0428.34047
Sunto
Per la equazione differenziale nonlineare con argomento ritardato $$(r(t) x'(t))^{(n-1)} + \sum_{i=1}^{m} p_{i}(t) f_{i}(x\left[g_{i}(t)\right]) = q(t)$$ si danno condizioni sufficienti per $r,p_{i},f_{i}, g_{i}$ e $q$ per le quali tutte le soluzioni non sono oscillatorie.
Referenze Bibliografiche
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Con il contributo del Ministero per i Beni e le Attività Culturali