【摘要】 利用振动性理论研究了二阶非线性泛函微分方程解的振动性与渐近性,并获得了一些新的振动准则.这些准则推广和验证了大量的现存结果,而且处理了已知振动准则所不能应用的情形.更多还原

【Abstract】 Using the theory of oscillation,the authors studied the oscillation criteria for second order nonlinear functional different equations.Some new oscillation criteria for equations were obtained.These criteria have extended,improved and unified a number of existing results and can handle cases not covered by known criteria.更多还原