Sergey V. Maleyev (1931–2021)

The outstanding physicist passed away on February, 20, 2021, a few months before his 90th anniversary. Sergey Vladimirovich Maleyev was born June 3, 1931, Yerevan. The World War II caught Sergey Maleyev in Leningrad. In December his family was evacuated from a sieged city in extremely malnourished condition. His father died during the evacuation. Sergey Maleyev graduated from high school in 1949 and entered the Faculty of Physics of Leningrad State University. Then he transferred to the Physics and Mathematics Faculty of Kharkov University and graduated from it in 1954. From 1954 to 1967 he worked at the Ioffe Physico-Technical Institute in Leningrad. In 1967, Sergey Vladimirovich organized the Department of solid-state theory, which he headed until 1997, and in which he worked until the end of his life. He earned a scientific degree of a Candidate of Sciences in Physics and Mathematics in 1958 and a Doctor of Sciences in 1974. The contribution of Sergey Maleyev to the development of national and world science cannot be overestimated. His works are widely known, their results having long become classics that went down in university textbooks. Among them there are: