 mikhail alekseevich lavrentyev or lavrentiev () (november 19, 1900 â october 15, 1980) was a soviet mathematician and hydrodynamicist. ==biography== lavrentiev was born in kazan, where his father was an instructor at a college (he later became a professor at kazan university, then moscow university). lavrentiev entered kazan university, and, when his family moved to moscow in 1921, he transferred to the department of physics and mathematics of moscow university. he graduated in 1922. he continued his studies in the university in 1923-26 as a graduate student of nikolai luzin. although luzin was alleged to plagiarize in science and indulge in anti-sovietism by some of his students in 1936, lavrentiev did not participate in the notorious political persecution of his teacher which is known as the luzin case or luzin affair. in 1927 lavrentiev spent half a year in france, collaborating with french mathematicians, and upon returned took up a position with moscow university. later he became a member of the staff of the steklov institute. his main contributions relate to conformal mappings and partial differential equations. mstislav keldysh was one of his students. one of lavrentiev's scientific interests was the physics of explosive processes, in which he had become involved when doing defense work during world war ii. a better understanding of the physics of explosions made it possible to use controlled explosions in construction, the best-known example being the construction of the medeu mudflow control dam outside of almaty in kazakhstan. mikhail lavrentiev was one of the main organizers and the first chairman of the siberian division of the russian academy of sciences (in his time the academy of sciences of the ussr) from its founding in 1957 to 1975. the foundation of the siberia's "academic town" akademgorodok (now a district of novosibirsk) remains his most widely known ach
1900_births 1980_deaths 20th-century_mathematicians Full_Members_of_the_USSR_Academy_of_Sciences Heroes_of_Socialist_Labour Moscow_Institute_of_Physics_and_Technology_faculty Moscow_State_University_alumni People_from_Kazan Russian_mathematicians Russian_physicists Soviet_mathematicians Soviet_physicists