Scientific co-authorship is a direct reflection of scientific collaboration. Foreign studies based on Web of Science and Scopus data show that over the past decades there has been an increase in the number of co-authors of scientific publications in international journals in various disciplines. The paper compares the growth trends in the number of co-authors according to the RSCI and Scopus data. The study was conducted in five thematic areas (chemistry, history, mathematics, medicine, and physics) from 2000 to 2020. The article shows the identity of the trends in the growth of the number of co-authors in the cases of publications on history and mathematics, and a noticeable difference in other scientific fields.

publication, co-authorship, number of co-authors of the article, RSCI, Scopus