Sergei Sobolev

Russian mathematician.

Born October 6th, 1908 in Saint Petersburg. [ref]

Died January 3rd, 1989 at 80 years old in Moscow. [ref]

Occupations
mathematician, university teacher
Wikipedia
Sergei_Sobolev

You’ll drift apart, it’s true, but you’ll be out in the open, part of everything alive again. Philip Pullman