Jacques Charles François Sturm was a French mathematician, who made a significant addition to equation theory with his work, Sturm's theorem.
Jacques Charles François Sturm portrayed by Jean-Daniel Colladon
Cours de mécanique de l'École polytechnique, 1871
Siméon Denis Poisson
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Baron Siméon Denis Poisson was a French mathematician and physicist who worked on statistics, complex analysis, partial differential equations, the calculus of variations, analytical mechanics, electr
Jacques Charles François Sturm
…the seat of André-Marie Ampère. Sturm became répétiteur in 1838, and in 1840 professor in the École Polytechnique. The same year, after the death of Poisson, Sturm was appointed as mechanics professor of the Faculté des sciences de Paris. His works, Cours d'analyse de l'école polytechnique (1857–1863) and…
Siméon Denis Poisson
The name of Poisson (first from the right) inscribed on the Eiffel Tower
Poisson's 1804 portrait by E. Marcellot, now in the collection of the École Polytechnique.
Poisson's equations for electricity (top) and magnetism (bottom) in SI units on the front cover of an undergraduate textbook.