单偶阶幻方──任意阶幻方构造规律研究

作者在完成任意阶奇阶幻方及任意阶双偶阶幻方研究的基础上，进一步探索任意价单偶阶幻方构造规律．文中提供的系列公式及方法解决了任意阶单偶阶幻方的计算及编制问题，并可借助电算程序快速、准确地编排出造型多样且阶数不封顶的任意价单偶阶幻方     

偶数阶非线性微分方程有界正解的存在性

考虑偶数阶非线性中立型微分方程,利用Lebesgue控制收敛定理获得了最终有界正解存在的一个充分必要条件.     

偶数阶线性脉冲微分方程解的振动性

讨论了偶数阶线性脉冲微分方程解的振动性,得到了一些充分条件,改进并推广了部分文献的相关结果.     

Comparison theorems on the oscillation of even order nonlinear mixed neutral differential equations

This study purposes to present some new comparison theorems that guarantee the oscillation of all solutions of even order functional differential equations with a neutral term including both advanced and delayed arguments. The obtained results are based on comparisons with associated first-order delay differential inequalities and first-order delay differential equations, and they are applicable to the both cases where the neutral coefficients are unbounded and/or bounded. In the last section, several examples showing the applicability of the results are provided.