Alexander Friedmann

Alexander Alexandrovich Friedmann (also spelled Friedman or Fridman /ˈfriːdmən/; Russian: Алекса́ндр Алекса́ндрович Фри́дман) (June 16 [O.S. 4], 1888 – September 16, 1925) was a Russian and Soviet physicist and mathematician. He originated the pioneering theory that the universe is expanding, governed by a set of equations he developed known as the Friedmann equations.

This article is about the Russian cosmologist. For the Russian astrophysicist, see Alexei Fridman. For the Polish Orthodox Jewish rabbi, see Alexander Zusia Friedman.
In this name that follows Eastern Slavic naming customs, the patronymic is Alexandrovich and the family name is Friedmann.
Alexander Friedmann
Александр Фридман
Born
Alexander Alexandrovich Friedmann

(1888-06-16)June 16, 1888
Saint Petersburg, Russian Empire
DiedSeptember 16, 1925(1925-09-16) (aged 37)
Leningrad, USSR
NationalityRussian
Alma materSt. Petersburg State University
Known for
SpouseNatalia Malinina
Scientific career
FieldsMathematics and physics
InstitutionsPetrograd Polytechnical Institute
Main Geophysical Observatory
Doctoral advisorVladimir Steklov
Doctoral students
Signature
Part of a series on
Physical cosmology
Early universe
Backgrounds
Expansion · Future
Components · Structure
Components
Structure
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