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French astronomer and mathematician, best known for Barbier's Theorem on the perimeter of curves of constant width.
- Born: 18 March 1839 in St Hilaire-Cottes, Pas-de-Calais, France
- Died: 28 January 1889 in St Genest, Loire, France
Theorems and Definitions
Results named for Joseph-Émile Barbier can be found here.
- 1860: Note sur le problème de l'aiguille et le jeu du joint couvert (J. Math. Pures Appl. Ser. 2 Vol. 5: pp. 273 – 286)