Pavel Korovkin Explained

Pavel Petrovich Korovkin
Native Name:Павел Петрович Коровкин
Native Name Lang:Russian
Birth Date:9 July 1913
Birth Place:Vesyegonsk, Tver Governorate
Death Place:Kaluga, Kaluga Oblast
Resting Place:Kaluga, Kaluga Oblast[1]
Fields:Approximation theory
Potential theory
Workplaces:Kalinin State Pedagogical Institute
Moscow Automobile and Road Institute
Kalinin State Pedagogical Institute
Kaluga State Pedagogical Institute
Alma Mater:Leningrad State University

Pavel Petrovich Korovkin (Russian: Павел Петрович Коровкин) (the family name is also transliterated as Korowkin in German sources) (9 July 1913 – 11 August 1985) was a Soviet mathematician whose main fields of research were orthogonal polynomials, approximation theory and potential theory. In 1947 he proved a generalization of Egorov's theorem:[2] from the early 1950s on, his research interests turned to functional analysis and he examined the stability of the exterior Dirichlet problem and the convergence and approximation properties of linear positive operators on spaces of continuous functions. The set of terms and Korovkin approximation are named after him.

Life and career

Korovkin was born to a poor peasant family. He lost his father early and grew from 1914 to 1920 at an orphanage. In 1930 he graduated high school in Leningrad. As the winner of a mathematics contest he had a right to enter the Leningrad State University without entrance exams. After a year of working at a factory he entered the Faculty of Mathematics and Mechanics. His scientific advisor was V.I. Smirnov. Korovkin earned his doctorate in 1939 with a dissertation on orthogonal polynomials. He then was appointed to Kalinin Pedagogical Institute.

At the beginning of Great Patriotic War Korovkin voluntarily enlisted to the Red Army. He started as a cannon platoon chief and till the end of war promoted to artillery regiment chief. He was awarded with Order of the Red Star.

In December 1945, he continued his work at the Kalinin Pedagogical Institute, in 1947 with a thesis on convergence of polynomial sequences, and was appointed professor in 1948. At the Moscow Automobile and Road Institute from 1958 to 1970 he headed the department of higher mathematics, then he became head of the Department of Mathematical Analysis at the Kaluga State Pedagogical Institute.

Selected publications

References

Biographical and general references

Scientific references

Notes and References

  1. Web site: http://www.vest-news.ru/news/73757 . ru:В Калуге состоялась международная конференция математиков. Кривов . Сергей . Сайт газеты Калужской области "Весть" . October 15, 2015. February 25, 2019. ru.
  2. In the paper . See also the two biographical papers by Nikol'skii, Privalov and Ul'yanov (Nikol'skii|Privalo|Ul'yanov|1984}}|1984, p. 180; Nikol'skii|Privalo|Ul'yanov|1986}}|1986, p. 156).