Isidor Pavlovich Natanson (russian: Исидор Павлович Натансон; February 8, 1906 in
Zurich – July 3, 1964 in
Leningrad
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 ...
) was a
Swiss-born
Soviet
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 nation ...
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 ...
known for contributions to
real analysis
In mathematics, the branch of real analysis studies the behavior of real numbers, sequences and series of real numbers, and real functions. Some particular properties of real-valued sequences and functions that real analysis studies include conv ...
and
constructive function theory In mathematical analysis, constructive function theory is a field which studies the connection between the smoothness of a function and its degree of approximation. It is closely related to approximation theory. The term was coined by Sergei Berns ...
, in particular, for his textbooks on these subjects. His son, Garal'd Natanson (1930–2003), was also a known mathematician.
Selected publications
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References
External links
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Mathematical analysts
Approximation theorists
1906 births
1964 deaths
Soviet mathematicians
20th-century Russian mathematicians
Swiss emigrants to the Soviet Union
{{Russia-mathematician-stub