Vladimir Andreevich Steklov (russian: Влади́мир Андре́евич Стекло́в; 9 January 1864 – 30 May 1926) was a Prominent

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and

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mechanician A mechanician is an engineer or a scientist working in the field of mechanics, or in a related or sub-field: engineering or computational mechanics, applied mechanics, geomechanics, biomechanics, and mechanics of materials. Names other than mechan ...

and

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Biography

Steklov was born in

Nizhny Novgorod Nizhny Novgorod ( ; rus, links=no, Нижний Новгород, a=Ru-Nizhny Novgorod.ogg, p=ˈnʲiʐnʲɪj ˈnovɡərət ), colloquially shortened to Nizhny, from the 13th to the 17th century Novgorod of the Lower Land, formerly known as Gork ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

. In 1887, he graduated from the

Kharkov University The Kharkiv University or Karazin University ( uk, Каразінський університет), or officially V. N. Karazin Kharkiv National University ( uk, Харківський національний університет імені ...

, where he was a student of

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 ...

. In 1889–1906 he worked at the Department of Mechanics of this university. He became a full professor in 1896. During 1893–1905 he also taught theoretical mechanics in the Kharkov Polytechnical Institute (now known as

Kharkiv Polytechnic Institute The National Technical University "Kharkiv Polytechnic Institute" (NTU "KhPI") ( uk, Національний технічний університет "Харківський політехнічний інститут"), in the city of Kha ...

). In 1906 he started working at

Petersburg University Saint Petersburg State University (SPBU; russian: Санкт-Петербургский государственный университет) is a public research university in Saint Petersburg, Russia. Founded in 1724 by a decree of Peter the ...

. In 1921 he petitioned for the creation of the Institute of Physics and Mathematics. Upon his death the institute was named after him. The Mathematics Department split from the Institute in 1934. It is now known as

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 ...

. A

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impact crater An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...

is also named after him. Steklov's primary scientific contribution was in the area of

orthogonal In mathematics, orthogonality is the generalization of the geometric notion of ''perpendicularity''. By extension, orthogonality is also used to refer to the separation of specific features of a system. The term also has specialized meanings in ...

functional Functional may refer to: * Movements in architecture: ** Functionalism (architecture) ** Form follows function * Functional group, combination of atoms within molecules * Medical conditions without currently visible organic basis: ** Functional sy ...

sets. He introduced a class of closed orthogonal sets, developed the asymptotic Liouville–Steklov method for

orthogonal polynomials In mathematics, an orthogonal polynomial sequence is a family of polynomials such that any two different polynomials in the sequence are orthogonality, orthogonal to each other under some inner product. The most widely used orthogonal polynomial ...

, proved theorems on

generalized Fourier series In mathematical analysis, many generalizations of Fourier series have proved to be useful. They are all special cases of decompositions over an orthonormal basis of an inner product space. Here we consider that of square-integrable functions de ...

, and developed an approximation technique later named

Steklov function Steklov (Cyrillic: ''Стеклов'') is a Russian last name. It may refer to: *Steklov (surname) * Steklov (crater), a lunar impact crater on the far side of the Moon * Steklov Institute of Mathematics, part of the Russian Academy of Sciences * T ...

. He also worked on

hydrodynamics In physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids—liquids and gases. It has several subdisciplines, including ''aerodynamics'' (the study of air and other gases in motion) and ...

and the

theory of elasticity Solid mechanics, also known as mechanics of solids, is the branch of continuum mechanics that studies the behavior of solid materials, especially their motion and deformation under the action of forces, temperature changes, phase changes, and ot ...

. Steklov wrote a number of works on the history of science. He was an Invited Speaker of the ICM in 1924 in Toronto. In 1926 he was elected a corresponding member of the

Göttingen Academy of Sciences and Humanities The Göttingen Academy of Sciences (german: Akademie der Wissenschaften zu Göttingen)Note that the German ''Wissenschaft'' has a wider meaning than the English "Science", and includes Social sciences and Humanities. is the second oldest of the se ...

. Steklov died in

Gaspra Gaspra ( uk, Гаспра, officially transliterated Haspra; russian: Гаспра; crh, Gaspra, from Greek hàspra, άσπρα, white) is a spa town, an urban-type settlement in Yalta Municipality in the Autonomous Republic of Crimea. It is loc ...

Crimea Crimea, crh, Къырым, Qırım, grc, Κιμμερία / Ταυρική, translit=Kimmería / Taurikḗ ( ) is a peninsula in Ukraine, on the northern coast of the Black Sea, that has been occupied by Russia since 2014. It has a pop ...

USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...

(now

). He was interred in

Saint Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

, Russia.

References

External links

* * * * N. Kuznetsov
The Legacy of Vladimir Andreevich Steklov in Mathematical Physics: Work and School
{{DEFAULTSORT:Steklov, Vladimir 1864 births 1926 deaths People from Nizhny Novgorod People from Nizhny Novgorod Governorate Soviet physicists 19th-century mathematicians from the Russian Empire 20th-century Russian mathematicians 20th-century Russian physicists Russian inventors Soviet mathematicians Full members of the Saint Petersburg Academy of Sciences Full Members of the Russian Academy of Sciences (1917–1925) Full Members of the USSR Academy of Sciences