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Vladimir Andreevich Steklov ( January 9, 1864 - May 30, 1926) was a Russian mathematician, mechanician and physicist.Steklov was born in Nizhny Novgorod, Russia. In 1887, he graduated from Kharkov University, where he was a student of Aleksandr Lyapunov. In 1889- 1906 he worked at the Department of Mechanics of this University. He became a full professor in 1896Events January 4 Utah is admitted as the 45th U. January 5 An Austrian newspaper reports that Wilhelm Rontgen discovered a type of radiation later known as X-rays. January 12 H. Smith takes the first X-ray photograph. January 18 The X-ray machine is exhib. From 1906 he worked at Petersburg UniversitySaint Petersburg State University ) the oldest Russian educational institution established in the city of Saint Petersburg on January 28, 1724 by decree of Peter the Great. It is also known as Petersburg University, Petrograd University, Leningrad State U. In 1921Events January 2 The first religious radio broadcast ( KDKA AM in Pittsburgh, Pennsylvania) January 2 Spanish liner Santa Isabel sinks off Villa Garcia 244 dead January 2 DeYoung Museum in Golden Gate Park San Francisco opens. January 20 Republic of Turke he petitioned for creation of Institute of Physics and Mathematics. Upon his death the institute was named after him. The Mathematics Department split from the Institute in 1934Events January-April January 1 Alcatraz becomes a federal prison. January 7 First Flash Gordon comic strip is published. January 10 Execution of Marinus van der Lubbe January 24 Einstein visits White House January 26 The Apollo Theater opens in Harlem, Ne. It's now known as Steklov Institute of MathematicsSteklov Institute of Mathematics is a shorthand name of Petersburg Department of Steklov Institute of Mathematics of Russian Academy of Sciences or PDMI RAS . The PDMI RAS is a research institute specialized in Mathematics located in Saint Petersburg, Rus.
Steklov's primary scientific contribution is in the area of orthogonalIn mathematics, orthogonal is synonymous with perpendicular when used as a simple adjective that is not part of any longer phrase with a standard definition. It means at right angles. It comes from the Greek "ortho", meaning "right" and "gonia", meaning " functionalIn mathematics, a function is a relation such that each element of a set (the domain is associated with a unique element of another (possibly the same) set (the codomain not to be confused with the range . The concept of a function is fundamental to virtu sets. He introduced a class of closed orthogonal sets; developed asymptotic Liouville-Steklov's method for orthogonal polynomialsIn mathematics, two polynomials f and g are orthogonal to each other with respect to a nonnegative "weight function" w precisely if : In other words, if polynomials are treated as vectors and the inner product of two polynomials f ''x and g ''x is defined; proved theorems on generalized Fourier series. Steklov developed approximation technique later named Steklov function . He also worked on hydrodynamics and theory of elasticity.
Steklov wrote a number of works on history of science.
Steklov died in Gaspra , Crimea, USSR (now Ukraine). He was interred in St. Petersburg, Russia.
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