Aleksandr Lyapunov

Aleksandr Lyapunov
Born6 June [O.S. 25 May] 1857
Yaroslavl, Russian Empire
Died3 November 1918(1918-11-03) (aged 61)
Alma materSaint Petersburg State University
Known forLyapunov function
Lyapunov stability
Lyapunov exponent
Lyapunov central limit theorem
Lyapunov vector
Scientific career
FieldsApplied mathematics
InstitutionsSaint Petersburg State University
Russian Academy of Sciences
Kharkov University
Thesis The general problem of the stability of motion  (1892)
Doctoral advisorPafnuty Chebyshev
Doctoral studentsVladimir Steklov

Aleksandr Mikhailovich Lyapunov[a][b] (Алекса́ндр Миха́йлович Ляпуно́в, 6 June [O.S. 25 May] 1857 – 3 November 1918) was a Russian mathematician, mechanician and physicist. He was the son of the astronomer Mikhail Lyapunov and the brother of the pianist and composer Sergei Lyapunov.

Lyapunov is known for his development of the stability theory of a dynamical system, as well as for his many contributions to mathematical physics and probability theory.
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