Jean Frédéric Auguste Delsarte (19 October 1903, in
Fourmies – 28 November 1968, in
Nancy) was a French
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, mathematical structure, structure, space, Mathematica ...
known for his work in
mathematical analysis
Analysis is the branch of mathematics dealing with continuous functions, limit (mathematics), limits, and related theories, such as Derivative, differentiation, Integral, integration, measure (mathematics), measure, infinite sequences, series ( ...
, in particular, for introducing
mean-periodic functions and
generalised shift operators. He was one of the founders of the
Bourbaki Bourbaki(s) may refer to :
Persons and science
* Charles-Denis Bourbaki (1816–1897), French general, son of Constantin Denis Bourbaki
* Colonel Constantin Denis Bourbaki (1787–1827), officer in the Greek War of Independence and serving in the ...
group. He was an
invited speaker at the International Congress of Mathematicians
An invitation system is a method of encouraging people to join an organization, such as a Club (organization), club or a website. In regular society, it refers to any system whereby new members are chosen; they cannot simply apply. In relation to w ...
in 1932 at
Zürich
Zurich (; ) is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zurich. It is in north-central Switzerland, at the northwestern tip of Lake Zurich. , the municipality had 448,664 inhabitants. The ...
.
Selected publications
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* Application de la théorie des fonctions moyenne-périodiques à la résolution de certaines équations intégrales (1934)
* Application de la théorie des fonctions moyenne-périodiques à la résolution des équations de Fredholm-Nörlund (1935)
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* Fonctions moyenne-périodiques sur un groupe abstrait (1937)
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External links
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1903 births
1968 deaths
People from Fourmies, Nord
20th-century French mathematicians
Nicolas Bourbaki
École Normale Supérieure alumni
French mathematical analysts
Knights of the Legion of Honour
Commandeurs of the Ordre des Palmes Académiques
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