**Leonid Aleksandrovich Shemetkov **(03.07.1937, Gomel – 24.03.2013), mathematician. Corresponding Member of the National Academy of Sciences of Belarus (1980), Doctor of Physico-Mathematical Sciences (1970), Professor (1973). Honored Scientist of the Republic of Belarus (1995).

- — Graduated from Gomel Pedagogical Institute (1959).
- — Since 1962 - Researcher at the laboratory of the Institute of Mathematics of the Academy of Sciences of the BSSR (Gomel).
- — Since 1977 - Vice-Rector for Academic Affairs, in 1989-2000 - Rector, since 2000 - Professor, Head of the Department of the Gomel State University named after F. Skaryna.

Scientific works on algebra. He created a new scientific direction - the theory of formations of algebraic systems. Solved the problem of enumeration of finite soluble groups posed by D.K. Faddeev in 1947, the problem of complementarity of normal subgroups posed by the German mathematician G. Wielandt at the Edinburgh Mathematical Congress in 1958. In the theory of formations, they were given the solution of such major problems as formational stability, external characterization of supersolubility, etc. Developed functional and lattice methods studies of algebraic system formations.

Author of about 100 scientific papers, incl. 3 monographs.

Awarded with the Order of the Red Banner of Labor (1986), the Holy Equal-Apostolic Grand Duke Vladimir (1999), Francisk Skaryna (2002), and medals. Freeman of the city of Gomel (2002).

- Формации конечных групп. М.: Наука, 1978.
- Формации алгебраических систем. М.: Наука, 1989 (совм. с А.Н. Скибой).
- On partially saturated formations and residuals of finite groups // Comm. Algebra. 2001. Vol. 29, №9.