A note on oscillation criteria of second order nonlinear neutral delay differential equations

作者：Qin Huizeng; Shang Nina; Lu Youmin^*

来源：Computers & Mathematics with Applications, 2008, 56(12): 2987-2992.

DOI：10.1016/j.camwa.2008.09.004

• Oscillation criteria
• Nonlinear
• Second order
• Differential equation
• Neutral delay

In recent years, many results on oscillation criteria of second order nonlinear neutral delay differential equations have been obtained, but some of these criteria are incorrect due to a mistake in a crucial auxillary result. This note examines several of these results, provides some counterexamples and points out what causes the problems.

• 出版日期2008-12
• 单位山东理工大学