Did you mean: Ivan Vsevolodovich Meshchersky
Ivan Vsevolodovich Meshcherskiy
Russian-Soviet mathematician
Ivan Vsevolodovich Meshchersky was a Russian Empire and Soviet mathematician who gained fame for his work on mechanics, notably the motion of bodies of variable mass. Wikipedia
Born: August 10, 1859, Arkhangelsk, Russia
Died: January 7, 1935 (age 75 years), Saint Petersburg, Russia
Academic advisor: Pafnuty Chebyshev