Jan Spielrein
Jan Nikolaevich Spielrein (; 14/26 June 1887 – 21 January 1938) was a Soviet scientist in the field of Mathematics, professor, Member of the USSR Academy of Sciences. Biography. He was born in 1887 in the Rostov-on-Don. Spielrein was educated in Rostov-on-Don. In 1907 he graduated from the Department of Physics and Mathematics of the University of Sorbonne, in 1911 the Higher Polytechnic School in Karlsruhe. Since 1911 Spielrein was an assistant professor at the University of Stuttgart. In the second half of 1918 he returned from Germany to Russia, taught at the Krasnodar Polytechnic Institute . In 1920–1921 Spielrein worked in the Bureau of Foreign Science and Technology in Moscow. Since 1921, he holds the post of professor of the electrical engineering faculty of the Moscow Higher Technical School. In 1930, Spielrein joined the newly formed Moscow Power Engineering Institute. Until the end of his life he was a professor, head of the department of higher mathematics, dean of the general and electrophysical faculties of the Moscow Power Engineering Institute. His field of research was the application of vector calculus, tensor analysis and other mathematical methods in electrical engineering, heating engineering and radio engineering. He was  also the author of the first handbook in the USSR on special functions in engineering calculations, one of the first to introduce a vector presentation in the course of theoretical mechanics. Spielrein was arrested on September 10, 1937 and sentenced to the death penalty by the Supreme Soviet of the Soviet Union on January 21, 1938, on charges of participating in the Democratic Party. He was executed by a firing squad at the Kommunarka shooting ground on the same day. On February 4, 1956 Spielrein was rehabilitated.