We present some new oscillation criteria for second order neutral delay differential equations with distributed deviating argument using the Riccati technique and some inequalities. The results obtained improve and extend some known results.
Siyu Zhang,Fanwei Meng(Dept. of Math.,Qufu Normal University,Qufu 273165,Shandong)
Using Riccati transformation techniques,some oscillation criteria for the forced second-order superlinear difference equations are established.These criteria are dis- crete analogues of the criteria for differential equations proposed by Yan.
Han Hongmei (Editorial Office,Magazine of Middle School Math.,Qufu Normal University,Qufu 273165,Shandong)