分式方程

本文指出了弱粘弹性材料结构的特征值是一组有理分式多项式方程的根，并给出了关于这些有理分式多项式方程根的一个定理。

It is pointed out that the eigenvalues of these structures are the roots of a series of rational fraction polynomial equations . A theorem about the roots of these equations is proved in the paper .

并针对测量环境的杂散辐射特点，建立了基于参考温度的差分式测量方程，可以有效地抑制杂散辐射所带来的影响。2.偏最小二乘投影寻踪回归方法在红外目标模拟器辐照度测量中的应用。

A difference equation is established by using two-temperature method to eliminate the background effects . 2 . The projection pursuit method with partial least square regression method is applied in irradiance measurement of infrared target simulator .

反射波分式展开时距方程及其精度分析

Fraction expansion time-distance equation of reflection wave and its accuracy analysis

复域上右端为有理分式的常微分方程的显易解结构

The explicit solution structure for differential equation which is rational fraction in right part of the complex number field