Aleksei Zinovyevich Petrov (russian: Алексе́й Зино́вьевич Петро́в; 28 October (15 October,

Old Style Old Style (O.S.) and New Style (N.S.) indicate dating systems before and after a calendar change, respectively. Usually, this is the change from the Julian calendar to the Gregorian calendar as enacted in various European countries between 158 ...

) 1910, Koshki,

Samara Governorate Samara Governorate (russian: Самарская губерния) was an administrative division (a '' guberniya'') of the Russian Empire and Russian SFSR, located in the Volga Region. It existed from 1850 to 1928; its seat was in the city of Samar ...

Russian Empire The Russian Empire was an empire and the final period of the Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended the Great Northern War. ...

– 9 May 1972,

Kiev Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper, Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the List of European cities by populat ...

Soviet Union 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 national ...

) was a

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 ...

noted for his work on the classification of Einstein spaces, today called

Petrov classification In differential geometry and theoretical physics, the Petrov classification (also known as Petrov–Pirani–Penrose classification) describes the possible algebraic symmetries of the Weyl tensor at each event in a Lorentzian manifold. It is mos ...

. The Petrov classification is related with the

Weyl tensor In differential geometry, the Weyl curvature tensor, named after Hermann Weyl, is a measure of the curvature of spacetime or, more generally, a pseudo-Riemannian manifold. Like the Riemann curvature tensor, the Weyl tensor expresses the tidal f ...

and it was first published by A. Z. Petrov in 1954.

External links

A biography of Petrov from Kazan State University
{{DEFAULTSORT:Petrov, Aleksei Zinovyevich 1910 births 1972 deaths Soviet mathematicians