Volume 259, Issue 3

This issue is a translation of Itogi Nauki i Tekhniki. Sovremennaya Matematika i Ee Prilozheniya. Tematicheskie Obzory (Progress in Science and Technology. Contemporary Mathematics and Its Applications. Thematic Surveys), Vol. 165, Proceedings of the IV International Scientific Conference “Actual Problems of Applied Mathematics,” Kabardino-Balkar Republic, Nalchik, Elbrus Region, May 22–26, 2018. Part I, 2019.