title: Dynamics of the index of ethnic polarization in the republic of Russia in the context of the concept of ethnic contact zones
abstract: One of the new trends in ethnic dynamics in the post-Soviet period was the increase in the proportion of titular ethnic groups in the population of the national subjects of the Russian Federation. In this study, an attempt was made to consider the change in the share of the titular population of the modern republics of Russia through the prism of the concept of ethno-contact zones, for which the phases of development of ethno-contact zones were identified using one of the indicators of national 
journal: Pskov region studies journal