Mathematics in the interwar period in Central-Eastern Europe. The report on an international research project for the years 2018–2020

In the article, we will show main important results of international research project The impact WWI on formation and transformation scientific life mathematical community. It was supported by Czech Science Foundation for years 2018–2020 brought together ten scientists from five countries (Czech Republic, Poland, Slovakia, USA, Ukraine) used collaboration with historians mathematics mathematicians many other European countries. We discuss our motivation creation project, methodological professional preparations which profited composition team its longtime collaborations, profound specializations experiences members, their deep long-term studies archival sources basic published works. present choice general trends, definition questions, determination topics studies. describe most (books, articles, visiting lectures, presentations at national conferences, seminars book fairs, exhibitions, popularizations between students, teachers, mathematicians, sciences, people who love history). analyze new benefit that created future, example, good platforms future cooperation, discovery interesting problems, plans.