【摘要】 利用频率测度的相关知识,讨论一类二阶具正负系数非线性差分方程组的频率振动性。给出一些引理和定理,并进行了证明,得到一些全新的二阶具正负系数差分方程组解的频率振动性的判别准则,用实例对判别准则进行验证。更多还原

【Abstract】 A class of second-order nonlinear difference equations group with positive and negative coefficients is concerned with.Some lemmas and theorems and their proofs are investigated by using some frequency measure knowledge.By that some new discriminated criterion on frequency vibration of two order difference equations with positive and negative coefficients are obtained.Finally,the criteria are verified by an example.更多还原