Based on the generating functional method with an external source function, a useful constraint on the source function is proposed for analyzing the oneand two-loop world-line Green functions. The constraint plays the same role as the momentum conservation law of a certain nontrivial form, and transforms ambiguous Green functions into the uniquely defined Green functions. We also argue reparame...

Based on results of Digne-Michel-Lehrer (2003) we give two formulae for two-variable Green functions attached to Lusztig induction in a finite reductive group. We present applications explicit computation these functions, conjectures Malle and Rotilio, scalar products between inductions Gelfand-Graev characters.

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...