The definition and characteristics of the reaction and diffusion process were proven depended on infinitesimal operators.
而反应扩散过程的定义和性质也依赖于其无穷小算子的性质。
2
An equation for the calculation of true shear strain was derived from the integration of infinitesimal shear strain in plane shearing process with constant principal shear strain direction.
对切应变主轴不变的平面简单切变过程，通过无穷小应变的积分，导出了真实切应变计算公式。
3
We find optimal stopping rules by using the weak infinitesimal generator of markov process.