Viktor Yakovlevich Bunyakovsky | |
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![]() Viktor Bunyakovsky in 1888
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Born | 16 December [O.S. 4 December] 1804 Bar |
Died | 12 December [O.S. 30 November] 1889 St. Petersburg, Russian Empire |
Citizenship | Russian |
Nationality | Ukrainian |
Fields | Mathematics |
Institutions | Petersburg Academy of Sciences |
Doctoral advisor | Augustin Cauchy |
Known for | theoretical mechanics, number theory |
Viktor Yakovlevich Bunyakovsky (Ukrainian: Буняковський Віктор Якович, Russian: Ви́ктор Я́ковлевич Буняко́вский; 16 December [O.S. 4 December] 1804, Bar, Podolia Governorate, Russian Empire – 12 December [O.S. 30 November] 1889, St. Petersburg, Russian Empire) was a Ukrainian and Russian mathematician, member and later vice president of the Petersburg Academy of Sciences.
Bunyakovsky worked in the mathematics, including the theoretical mechanics and the number theory (see: Bunyakovsky conjecture), and is credited with an early discovery of the Cauchy–Schwarz inequality, proving it for the infinite dimensional case in 1859, many years prior to Hermann Schwarz's works on the subject.
Viktor Yakovlevich Bunyakovsky, noted as an eminent mathematician of the 19th century, was born in Bar, Podolia Governorate, Russian Empire (today Ukraine) in 1804. Viktor Ya. Bunyakovsky was a son of Colonel Yakov Vasilievich Bunyakovsky from the Ulansky regiment, who was killed in Finland in 1809.[1]
Bunyakovsky obtained his initial mathematical education at the home of his father's friend, Count Alexander Tormasov in St. Petersburg. In 1820, he joined the count's son in traveling to a university in Coburg and subsequently to the Sorbonne in Paris in France to study mathematics. At the Sorbonne, Bunyakovsky had an opportunity to attend lectures from Laplace, Poussin, and Fourier, among others. He spent the most time studying and doing research in mathematics and physics with Cauchy.[1]
In 1824, Bunyakovsky received his bachelor's degree from Sorbonne in Paris in France. He wrote three doctoral dissertations under Cauchy's supervision at Sorbonne in Paris in France as of Spring, 1825:
1) Rotary motion in a resistant medium of a set of plates of constant thickness and defined contour around an axis inclined with respect to the horizon;
2) The determination of the radius vector in elliptical motion of planets; and
3) The propagation of heat in solids. He successfully completed his dissertation on theoretical mechanics and mathematical physics, and received his doctorate under Cauchy supervision at Sorbonne in Paris in France.[2]
After the seven years abroad, Bunyakovsky returned to St. Petersburg in 1826 and took up teaching and research, which he pursued for much of his life. In addition to the university courses in analytical mathematics, differential equations, and probability theory, he was also active in preparing syllabi and teaching manuals for Russian schools and military academies.
He lectured on mathematics and mechanics at the First Cadet Corps (later the Naval Academy) in 1826 - 1831 and at the Communications Institute in St. Petersburg, Russia.
From 1828 to 1864, Bunyakovsky was attached to the officer classes at Naval Academy in St. Petersburg in Russia.
From 1846 to 1880, Bunyakovsky was a professor at St. Petersburg University in St. Petersburg, Russia.[1]
In 1859, Bunyakovsky teached the mathematics at St. Petersburg State Railways University named after Alexander I in St. Petersburg, Russia.
Alongside his teaching responsibilities, Bunyakovsky made significant scientific contributions in the number theory and probability theory. His scientific interests included:[3]
He worked in theoretical mechanics and number theory (see: Bunyakovsky conjecture), and is credited with an early discovery of the Cauchy–Schwarz inequality, proving it for the infinite dimensional case in 1859, many years prior to Hermann Schwarz's research on the subject.
Bunyakovsky is an author of the book, titled: "Foundations of the mathematical theory of probability," which was published in 1846.[4] Bunyakovsky published around 150 research papers.[1]
Bunyakovsky became a member of the precursor organization to the Russian Academy of Sciences. He was named an adjunct in the mathematics (May 7, 1828), an extraordinary academician (March 24, 1830), and an ordinary academician at the physics and mathematics division (January 8, 1841).
Bunyakovsky was elected to the post of the Vice President of the Russian Academy of Sciences on April 8, 1864 (in fact since August 10, 1863 г.) . Bunyakovsky was a Vice-President of the St-Petersburg Academy of Sciences for 25 years (08.04.1864 - 26.09.1889).
In 1875, the St. Petersburg Academy of Sciences issued a medal and established a prize, bearing Viktor Yakovlevich Bunyakovsky name, for his outstanding mathematical research.
Bunyakovsky is well known as one of the founders of the St-Petersburg scientific school of thinking on the number theory and the probability theory.
Bunyakovsky wrote around the one hundred fifty research works and a number of books. [5]
Bunyakovsky published his first volume: "Lexicon of fundamental and applied mathematics", which was written until letter "D" in Russia in 1839. After Bunyakovsky's death, the manuscripts with other volumes: E, F, G, H, I, J, K, L were found, containing a note by Bunyakovsky's hand: «Do not print, but pass to the Russian Academy of Sciences archive for the researchers, who will continue my Lexicon." The hand-written manuscripts are preserved at Department of Manuscripts, Library, Russian Academy of Sciences.
The book, titled: "Foundations of mathematical theory of probability", by Bunyakovsky was published in St. Petersburg in Russia in 1846. Bunyakovsky became a famous scientist after this scientific book publication.
Bunyakovsky wrote a research article titled: "On possibility of introduction of certain measures of trust to results of some sciences and statistics mainly", which was published in "Sovremennik" in Russia in 1848.
Bunyakovsky published his monograph: "The parallel lines" in which he provided the scientific evidences to the problems in the parallel lines theory in Russia in 1853.
Bunyakovsky wrote a research article titled: "Biological researches and their application to man's population in Russia", which was published in "Zapiski Academii Nauk" in Russia in 1873—1874.
Bunyakovsky printed a research article titled: "On the probability of number of divisions of Russian army in 1883—1885", which was published in "Zapiski Academii Nauk" in Russia in 1885.
Bunyakovsky developed a number of practical applications as far as the probability theory is concerned, publishing his research articles in the following magazines: "Sovremennik", «Zhurnal Ministerstava Narodnogo Prosvesheniya" in Russia.
Bunyakovsky made a significant scientific contribution to the problem of the naval department pension fund creation, publishing his research articles in "Morskoi Sbornik" magazine in Russia in 1858.
Bunyakovsky formulated an empirical law of the death, making it possible to solve the problems on the calculation of both the capitals insurance and the life-time incomes in the finances in 1869.
The scientific contributions by Viktor Yakovlevich Bunyakovsky have a number of significant impacts on the mathematics science, physics science, chemistry science, computer science, electronics science, finance science, economics science, business administration science.
"The Bunyakovsky International Conference" with the aim to pay respect to the Viktor Yakovlevich Bunyakovsky scientific achievements was conducted in the City of Kyiv in Ukraine in 2004, and a tour to the Bar, Ukraine was organized for all the conference participants.[3]
There is a street named after Viktor Yakovlevich Bunyakovsky,[4] in Bar, Ukraine.
Viktor O. Ledenyov a famous physicist[6][7][8] and an econophysicist[9][10][11] was born in a private house on the Bunyakovsky Street in Bar, Ukraine in 1971.