Alexey Andreevich Lyapunov (russian: Алексе́й Андре́евич Ляпуно́в; 25 September 1911 – 23 June 1973) was a Soviet mathematician and an early pioneer of

computer science Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to Applied science, practical discipli ...

. One of the founders of Soviet cybernetics, Lyapunov was member of the

Soviet Academy of Sciences The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991, uniting the country's leading scientists, subordinated directly to the Council of Ministers of the Soviet Union (until 1946 ...

and a specialist in the fields of real function theory, mathematical problems of

cybernetics Cybernetics is a wide-ranging field concerned with circular causality, such as feedback, in regulatory and purposive systems. Cybernetics is named after an example of circular causal feedback, that of steering a ship, where the helmsperson m ...

set theory Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory, as a branch of mathematics, is mostly conce ...

, programming theory, mathematical linguistics, and

mathematical biology Mathematical and theoretical biology, or biomathematics, is a branch of biology which employs theoretical analysis, mathematical models and abstractions of the living organisms to investigate the principles that govern the structure, development a ...

Biography

Composer

Sergei Lyapunov Sergei Mikhailovich Lyapunov (or Liapunov; russian: Серге́й Миха́йлович Ляпуно́в, ; 8 November 1924) was a Russian composer, pianist and conductor. Life Lyapunov was born in Yaroslavl in 1859. After the death of his fath ...

, mathematician

Aleksandr Lyapunov Aleksandr Mikhailovich Lyapunov (russian: Алекса́ндр Миха́йлович Ляпуно́в, ; – 3 November 1918) was a Russian mathematician, mechanician and physicist. His surname is variously romanized as Ljapunov, Liapunov, Liapo ...

, and philologist

Boris Lyapunov Boris may refer to: People * Boris (given name), a male given name *:''See'': List of people with given name Boris * Boris (surname) * Boris I of Bulgaria (died 907), the first Christian ruler of the First Bulgarian Empire, canonized after his ...

were close relatives of Alexey Lyapunov. In 1928, Lyapunov enrolled at

Moscow State University M. V. Lomonosov Moscow State University (MSU; russian: Московский государственный университет имени М. В. Ломоносова) is a public research university in Moscow, Russia and the most prestigious ...

to study mathematics, and in 1932 he became a student of

Nikolai Luzin Nikolai Nikolaevich Luzin (also spelled Lusin; rus, Никола́й Никола́евич Лу́зин, p=nʲɪkɐˈlaj nʲɪkɐˈlaɪvʲɪtɕ ˈluzʲɪn, a=Ru-Nikilai Nikilayevich Luzin.ogg; 9 December 1883 – 28 January 1950) was a Soviet/Ru ...

. Under his mentorship, Lyapunov began his research in

descriptive set theory In mathematical logic, descriptive set theory (DST) is the study of certain classes of "well-behaved" subsets of the real line and other Polish spaces. As well as being one of the primary areas of research in set theory, it has applications to ot ...

. He became world-wide known for his theorem on the range of an atomless vector-measure in finite dimensions, now called the Lyapunov Convexity Theorem. From 1934 until the early 1950s, Lyapunov was on the staff of the

Steklov Institute of Mathematics Steklov Institute of Mathematics or Steklov Mathematical Institute (russian: Математический институт имени В.А.Стеклова) is a premier research institute based in Moscow, specialized in mathematics, and a part ...

. When

Mstislav Keldysh Mstislav Vsevolodovich Keldysh (russian: Мстисла́в Все́володович Ке́лдыш; – 24 June 1978) was a Soviet mathematician who worked as an engineer in the Soviet space program. He was the academician of the Academy o ...

organized the Department of Applied Mathematics (now the M.V. Keldysh Institute of Applied Mathematics) he suggested Lyapunov to lead its work on programming. In 1954 A.A. Lyapunov was invited by A.I. Kitov (scientific director of the Computing Center No. 1 of the USSR Ministry of Defense) to this computing center as head of the laboratory. A.A. Lyapunov worked at this military computing center until 1960. In 1961, Lyapunov moved to the Institute of Mathematics of the Siberian Division of the USSR Academy of Sciences (now the

Sobolev Institute of Mathematics The Sobolev Institute of Mathematics (SIM) was founded in 1957 by Sergey Sobolev. It is located in Akademgorodok and it constitutes part of the Siberian Branch of the Russian Academy of Sciences. Sergey S. Goncharov is the director. The institute ...

), where he founded the department of cybernetics. At

Novosibirsk State University Novosibirsk State University is a public research university located in Novosibirsk, Russia. The university was founded in 1958, on the principles of integration of education and science, early involvement of students with research activities an ...

, he founded the Department of Theoretical Cybernetics and the Laboratory of Cybernetics at the Institute of Hydrodynamics of the Siberian Division of the USSR Academy of Sciences (now the Lavrentiev Institute of Hydrodynamics) which he led until the end of his life. In 1964, Lyapunov was elected a member of the USSR Academy of Sciences and joined the Division of Mathematics. He was awarded the

Order of Lenin The Order of Lenin (russian: Орден Ленина, Orden Lenina, ), named after the leader of the Russian October Revolution, was established by the Central Executive Committee on April 6, 1930. The order was the highest civilian decoration b ...

. In 1996, he was awarded the

IEEE Computer Society The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operati ...

Computer Pioneer Award The Computer Pioneer Award was established in 1981 by the Board of Governors of the IEEE Computer Society to recognize and honor the vision of those people whose efforts resulted in the creation and continued vitality of the computer industry. ...

References

Biography of Lyapunov

External links

*
A. A. Lyapunov (on his 60th birthday)

S. Kutateladze "Lyapunov's convexity theorem, zonoids, and bang-bang"
{{DEFAULTSORT:Lyapunov, Alexey Soviet mathematicians 1911 births 1973 deaths Novosibirsk State University academic personnel Soviet cyberneticists

Alexey Alexey, Alexei, Alexie, Aleksei, or Aleksey (russian: Алексе́й ; bg, Алексей ) is a Russian and Bulgarian male first name deriving from the Greek ''Aléxios'' (), meaning "Defender", and thus of the same origin as the Latin Ale ...

Moscow State University alumni Scientists from Moscow