Lobachevskii Journal of Mathematicsis is a peer-reviewed journal. It takes its name from the renowned Russian mathematician Nikolai Lobachevsky (Lobachevskii), a significant figure in mathematics whose contributions were not adequately recognized during his lifetime. The journal encompasses various mathematical areas, including, but not limited to, geometry and topology, algebra, complex analysis, functional analysis, differential equations and mathematical physics, probability theory and stochastic processes, computational mathematics, mathematical modeling, numerical methods and program complexes, optimal control, algorithm theory, data science, information processes, as well as all other branches of pure mathematics, applied mathematics, and computer science. The primary objective of the journal is to publish articles authored by individuals who share the pioneering spirit of Lobachevskii in contemporary mathematics. Original research articles and critical reviews are frequently compiled into thematic issues. The editorial and review policies remain consistent for all submissions. As part of its aim to become an international publication, the journal welcomes submissions in English from authors around the world.