Lars Edvard Phragmén

Lars Edvard Phragmén (2 September 1863, Örebro – 14 March 1937) was a Swedish mathematician who made contributions to complex analysis, voting theory, and actuarial science. He succeeded Sofia Kovalevskaia as professor of mathematical analysis at Stockholm University in 1892, where his research culminated in the development of the Phragmén–Lindelöf principle, and later served as president of the board of the Mittag-Leffler Institute. His pioneering "load-balancing" voting methods for proportional representation have experienced renewed interest in modern social choice theory and found practical application in Swedish parliamentary elections.

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