About some models of interaction of social groups

When creating mathematical models of social processes, there are such difficulties as the lack of fundamental laws, poor measurability of social indicators, and a strong diversity of scales – from small social groups to ethnic groups, heterogeneity and non-linearity of the studied social objects. The process of interaction between individuals, collectives and organized masses is a complex synergetic system of dependent variables and the behavior of this system can change dramatically under certain external conditions, leading to various kinds of extreme (crisis) situations, to changes on a macroscopic scale.