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Nonoscillation Characterizations of Second Order Linear Differential Equations |
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| Authors: | Horng– Jaan Li |
| Abstract: | In this paper, we establish some nonoscillatory characterizations of solutions of the second order linear differential equation (pu′)′ + qu = 0. Using these characterizations, we give some comparison theorems improving the results of Hille , Wintner , Wong and Yu . |
| Keywords: | Nonoscillation characterizations comparison theorems oscillation |