Gury Kolosov

220px Gury Vasilievich Kolosov (Гурий Васильевич Колосов, 25 August 1867 – 7 November 1936) was a Russian and

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...

and engineer. He is best known for his contributions to the theory of

elasticity Elasticity often refers to: *Elasticity (physics), continuum mechanics of bodies that deform reversibly under stress Elasticity may also refer to: Information technology * Elasticity (data store), the flexibility of the data model and the cl ...

. In 1907 Kolosov derived the solution for stresses around an elliptical hole in a solid material governed by the mathematical theory of elasticity. He showed that the concentration of stress could become far greater, as the radius of curvature at an end of the hole becomes small compared with the overall length of the hole. Kolosov was born in Ust, Novgorod guberniya. He then studied at

University of St Petersburg 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 G ...

where he continued to after graduation. Eventually, he defended his thesis there under the supervision of V.A. Steklov. He worked at

University of Tartu The University of Tartu (UT; et, Tartu Ülikool; la, Universitas Tartuensis) is a university in the city of Tartu in Estonia. It is the national university of Estonia. It is the only classical university in the country, and also its biggest ...

(from 1902 to 1913), but later returned to

St 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 ...

where he worked at both the

and the Electrotechnical Institute. He was an

invited speaker at the International Congress of Mathematicians This is a list of International Congresses of Mathematicians Plenary and Invited Speakers. Being invited to talk at an International Congress of Mathematicians has been called "the equivalent, in this community, of an induction to a hall of fame." ...

in 1908 at Rome and in 1928 at Bologna. Kolosov was elected a corresponding member of the

Russian Academy of Sciences The Russian Academy of Sciences (RAS; russian: Росси́йская акаде́мия нау́к (РАН) ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across t ...

in 1931. He wrote the 1935 monograph "The use of a complex variable in the theory of elasticity" (in Russian). He was buried in

Smolensky Cemetery Smolensky Cemetery () is the oldest continuously operating cemetery in Saint Petersburg, Russia.Picture
– from the

web site. {{DEFAULTSORT:Kolosov, Gury 1867 births 1936 deaths Mathematicians from the Russian Empire Soviet mathematicians Soviet engineers Engineers from the Russian Empire Saint Petersburg State University alumni Academic staff of Saint Petersburg State University Corresponding Members of the USSR Academy of Sciences Academic staff of the University of Tartu