P. L. Chebyshev — scientist, teacher and scientific figure

The article is devoted to the scientific and pedagogical activities of Pafnuty Lvovich Chebyshev (1821–1894) — one of the greatest mathematicians of the 19th century, the founder of the theory of synthesis of mechanisms, the author of fundamental results in the field of probability theory, who transformed this science into one of the most dynamically developing branches of mathematics and mathematical natural science, the author of remarkable achievements in number theory, function theory and mathematical analysis and in other branches of mathematics, the creator of the brilliant Petersburg mathematical school, who, together with Ch. Hermite, K. Weierstrass, J. Sylvester, G. Mittag-Leffler, acted as one of the leaders of the newly emerging world mathematical community.