Its found that the stress functions corresponding to the mirror point of higher order can be determined from the lower order ones by recurrence, which is easy for computer programing.
对应于高阶镜像点的应力函数，可通过递推的方法，从对应于低阶镜像点的应力函数求得，而且也易于计算机编程。
In this paper, the lower order moments formulae of crack length distribution under given life were derived by means of stochastic point process theory.
运用随机点过程理论导出了求取裂纹扩展随机过程低阶矩的公式。
Studies the existence for two-point boundary value problems of two fourth-order nonlinear equations by using the theories of upper and lower solutions.
利用上下解理论研究了两类四阶非线性方程两点边值问题解的存在性。
应用推荐