The article aims at the relationship between China’s green insurance, social and economic development, environmental protection. It analyzes insurance development measures operating mechanism. According to China Statistical Yearbook, based on data from 2011-2019, research variables are selected for empirical analysis qualitative analysis. is concluded that industry conducive sustainable reduces...

In formal scattering theory, Green functions are obtained as solutions of a distributional equation. In this paper, we use the Sturm-Liouville theory to compute Green functions within a rigorous mathematical theory. We shall show that both the Sturm-Liouville theory and the formal treatment yield the same Green functions. We shall also show how the analyticity of the Green functions as function...