Boris Demidovich

Boris Pavlovich Demidovich (; ; 2 March 1906 – 23 April 1977) was a Soviet Belarusian mathematician.

Family and early life Demidovich was born in a family of teachers. His father, Pavel (1871 – 1931), was able to get higher education, graduating in 1897 in Vilna; Pavel Demidovich was a teacher throughout his life, first teaching in different towns in the Minsk and Vilna Governorates, and then in Minsk; he was very attached to his family, and to Belarusian beliefs and rituals. He also recorded some anonymous literary works of the Belarusian tradition. In 1908 Pavel Demidovich was nominated member of the Imperial Officer of the Company Enthusiasts science, Anthropology at Moscow University.

Kolmogorov saw that Demidovich was interested in the problems of differential equations, invited him to join him in studying the qualitative theory of ordinary differential equations under the direction of Vyacheslav Stepanov. Supervising his activities, Stepanov identified himself as the scientific advisor of his younger colleague.

After his graduation, in 1935, Demidovich worked for one semester at the Department of Mathematics at the Institute for the leather industry. And, since February 1936, at the invitation of LA Tumarkin, he served as assistant chair of mathematical analysis of Mechanics and Mathematics Faculty of Moscow State University. Until his death he remained a permanent staff member. In 1935 at the Moscow University, Demidovich discussed his PhD thesis, "On the existence of the integral invariant on a system of periodic orbits" and the following year, he was awarded the degree of Ph.D. and Chinese translations available) was particularly influential and continues to be used in calculus education in the People's Republic of China. Demidovich was often invited in Organizing Committees of scientific conferences and he actively cooperated with the editorial staff of various mathematical journal ("Differential Equations", RJ "Mathematics"), as well as the mathematical formulation of "BSE".