Thirdly, a model of spatial diffusion, which is based on the theory of stochastic process, was presented.Then, an analysis method of equiprobable curve of diffusion and some simulations were provided.

• 运用随机过程理论与方法建立技术创新空间扩散的数学模型，并提出等扩散概率曲线分析方法，对技术创新空间扩散进行了模拟；