Mlodzeevskii was born in
Moscow July 10, 1858. His father was a
doctor, a professor at
Moscow University; he died when Boleslav was seven. After finishing Moscow
gymnasium with a
gold medal, he studied at
Moscow University, where he received a Ph.D. degree in
mathematics in 1886, in differential geometry. In his dissertation he studied the problem of deformation of surfaces; his advisor was
Vasily Zinger. After two years of studies and work in
Göttingen,
Paris and
Zürich, he return to Moscow to assume a professorship at Moscow University. With a short gap 1911-1917 when he was forced to leave, he continued working at the university until his death. He died from
diabetes complications in 1923 in Moscow. == Literary references ==