The journal "Mathematics and Theoretical Computer Science" was founded by the Volga Region Scientific-Educational Centre of Mathematics in 2022. Since 2023, it has been published at Kazan (Volga Region) Federal University. In the same year, the journal was registered with the Ministry of the Russian Federation for Press, Television and Radio Broadcasting and Mass Communications (El No. ФС77-84704 dated February 6, 2023). It has a representative editorial board with world-class leading scientists. The journal is focused on the electronic publication of scientific articles in all major areas of fundamental and applied mathematics, theoretical informatics and computer science. The languages of the journal are Russian and English. 4 issues of the journal are published per year. Articles published in it are also published in English in the “Lobachevskii Journal of Mathematics”, which is included in the VAK list and indexed in all major Russian and international citation systems such as Web of Science, Scopus, RSCI, etc.