Jules Haag

Jules Haag (9 August 1882, Flirey – 16 February 1953, Besançon) was a French mathematician and horologist.

Education and career Haag matriculated at l'École Normale Supérieure in 1903 and successfully qualified for the agrégation of mathematics in 1906. He received in 1910 his doctorate in mathematics from the University of Paris with dissertation Families de Lamé, composées de surfaces égales: généralisations, applications under the supervision of Gaston Darboux.

In 1927 he became head of the Chronometry Institute in Besançon, which became the École Nationale Supérieure de Chronométrie et Micromécanique in 1961, renamed École nationale supérieure de mécanique et des microtechniques (E.N.S.M.M.) in 1980. At the beginning of the 1930s, he wrote numerous publications in the fields of synchronized oscillations, sustained oscillations, and relaxation oscillations. and in 1932 at Zurich.