| A Note on "Oscillation of Solutions of First Order Delay Differential Equations |
| Received:December 26, 1988 |
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| Abstract: |
| The aim in this paper is to cite instances in illustration of the incorrectness of certain oscillation theorems in Yan [1] . We also point out that the proof of the main theorems in [ 1 ] is not true, and express our correct opinion upon these mistakes. |
| Citation: |
| DOI:10.3770/j.issn:1000-341X.1990.02.027 |
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