Nikolai Kochin

Nikolai Yevgrafovich Kochin (Russian Николай Евграфович Кочин, English transcription Nikolai Kochin Yevgrafovich; born May 19, 1901 in Saint Petersburg, † December 31, 1944 in Moscow) was a Russian mathematician.

Life

Kochin graduated from the University of Petrograd with a degree in 1923. Starting from 1924 he was a lecturer and was there from 1934 at the Lomonosov University in Moscow. In addition, he was from 1939 to 1944 at the Institute of Mechanics of the Soviet Academy of Sciences. During World War II he remained in Moscow, where he conducted research for the military. His wife and two daughters were evacuated to Kazan, but returned back in 1944. In the same year Kochin died after an illness. His wife continued his lectures.

Kochin dealt primarily with theoretical hydrodynamics, meteorology, gas dynamics and theory of shock waves. Among other things, he developed a theory of water waves of small amplitude, examined the rolling motion of ships and the aerodynamics of airfoils.

Since 1925 he was married to his fellow - student Pelageja Jakovlevna Polubarinowa - Kochina that just as he was a well-known mathematician specializing in hydrodynamics. She also wrote his biography and published his works.

Kochin was 1928 at the University of Göttingen, where he met George Gamow, which he helped his calculations to the tunnel effect when alpha decay of atomic nuclei.

Writings

• NE Kochin, IA Kibel, NV Roze: Theoretical hydro- mechanics, Interscience, New York 1964 ( German Edition: Theoretical Hydromechanics, Akademie Verlag, Berlin).