Alexander Friedmann (Mathematician) – Bio, Birthday, Family, Age & Born
Alexander Friedmann

Alexander Alexandrovich Friedmann was a Russian and Soviet physicist and mathematician. He is best known for his pioneering theory that the universe was expanding, governed by a set of equations he developed now known as the Friedmann equations.

Born: Alexander Alexandrovich Friedmann, June 16, 1888, Saint Petersburg, Russian Empire
Died: September 16, 1925, Leningrad, USSR
Nationality: Russian
Fields: Mathematics and physics
Institutions: Petrograd Polytechnical Institute, Main Geophysical Observatory
Alma mater: St. Petersburg State University
Doctoral students: George Gamow, Nikolai Kochin, Pelageya Polubarinova-Kochina
Known for: Friedmann equations, Friedmann–Lemaître–Robertson–Walker metric
Spouse: Natalia Malinina

About Alexander Friedmann

Mathematician and physicist remembered for his Friedmann equations, which sought to explain his theory of the universe’s expansion.

Before Fame

After graduating from St. Petersburg State University, he fought for his native Russia in World War I.


He died of typhoid fever at the age of thirty-seven.

Family Life

He was born in Saint Petersburg, Russia to a ballet dancer father (Alexander Friedmann) and a pianist mother (Ludmila Ignatievna Voyachek). He was married twice: to Ekaterina Dorofeyeva and, later, to Natalia Malinina.


He and astronomer Georges Lemaitre both theorized that the universe was expanding.

Information related to Alexander Friedmann

  • 20th-century Russian mathematicians
  • Relativity theorists
  • Cosmologists
  • Soviet physicists
  • Lenin Prize winners
  • Soviet mathematicians
  • Russian physicists
  • Pennsylvania State University faculty
  • 20th-century physicists

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