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He left the university in 1903, joining the Royal
Inspection of Insurance Companies. He became director the following year. In 1908, he was appointed director of the insurance company Allmänna Lifförsakringsbolaget.
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Yngve Domar, « Mathematical research during the first decades of the
University of Stockholm », Stockholm University, 1978 (written and translated by H. Troy and H.S. Shapiro)
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Sur une extension d'un principe classique de l'analyse et sur quelques propriétés des fonctions monogènes dans le voisinage d'un point singulier
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to analytic functions on a sector. A first version was proposed by Phragmén, then improved by the
Finnish mathematician
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In addition to analysis, Phragmén was interested in the mathematics underlying insurance companies, and voting.
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59:'s assistant at Stockholm. In 1884, he provided a new proof of the
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He left
Uppsala less than a year after, becoming professor
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From 1889 until his death, he was an active editor of
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40:The son of a college professor, he studied at
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193:Academic staff of Stockholm University
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213:20th-century Swedish mathematicians
188:19th-century Swedish mathematicians
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129:Phragmen-Lindelof principle
84:Phragmén–Lindelöf principle
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124:Phragmen–Brouwer theorem
61:Cantor-Bendixson theorem
134:Phragmen's voting rules
26:– 13 March 1937) was a
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16:Swedish mathematician
66:His work focused on
20:Lars Edvard Phragmén
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76:Liouville's theorem
105:three-body problem
68:elliptic functions
50:Sofia Kovalevskaia
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96:Acta Mathematica
72:complex analysis
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24:Örebro
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