Johan Jensen
Danish mathematician and engineer
Johan Jensen 's AcademicInfluence.com Rankings
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Mathematics Engineering
Johan Jensen 's Degrees
- PhD Mathematics Aarhus University
- Masters Engineering Technical University of Denmark
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Why Is Johan Jensen Influential?
(Suggest an Edit or Addition)According to Wikipedia, Johan Ludwig William Valdemar Jensen, mostly known as Johan Jensen , was a Danish mathematician and engineer. He was the president of the Danish Mathematical Society from 1892 to 1903. Biography Jensen was born in Nakskov, Denmark, but spent much of his childhood in northern Sweden, because his father obtained a job there as the manager of an estate. Their family returned to Denmark before 1876, when Jensen enrolled to the College of Advanced Technology. Although he studied mathematics among various subjects at college, and even published a research paper in mathematics, he learned advanced math topics later by himself and never held any academic position. Instead, he was a successful engineer for the Copenhagen Telephone Company between 1881 and 1924, and became head of the technical department in 1890. All his mathematics research was carried out in his spare time. Jensen is mostly renowned for his famous inequality, Jensen's inequality. In 1915, Jensen also proved Jensen's formula in complex analysis.
Johan Jensen 's Published Works
Published Works
- Sur les fonctions convexes et les inégalités entre les valeurs moyennes (1906) (1518)
- Recherches sur la théorie des équations (1913) (107)
- Sur une identité d'Abel et sur d'autres formules analogues (1902) (73)
- Sur un nouvel et important théorème de la théorie des fonctions (1899) (68)
- Sur un théorème général de convergence (0)
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