Siméon Denis Poisson

Siméon Poisson
FRS FRSE
Born(1781-06-21)21 June 1781
Pithiviers, Kingdom of France (present-day Loiret)
Died25 April 1840(1840-04-25) (aged 58)
Sceaux, Hauts-de-Seine, Kingdom of France
Alma materÉcole Polytechnique
Known forPoisson process
Poisson equation
Poisson kernel
Poisson distribution
Poisson bracket
Poisson's spot
Poisson's ratio
See list
Scientific career
Fields
  • Mathematics
  • physics
InstitutionsÉcole Polytechnique
Bureau des Longitudes
Faculté des sciences de Paris
École de Saint-Cyr
Academic advisors
Joseph-Louis Lagrange
Pierre-Simon Laplace
Doctoral students
Michel Chasles
Joseph Liouville
Other notable students
Nicolas Léonard Sadi Carnot
Peter Gustav Lejeune Dirichlet

Baron Siméon Denis Poisson (/pwɑːˈsɒ̃/, US also /ˈpwɑːsɒn/; French: [si.me.ɔ̃ də.ni pwa.sɔ̃]; 21 June 1781 – 25 April 1840) was a French mathematician and physicist who worked on statistics, complex analysis, partial differential equations, the calculus of variations, analytical mechanics, electricity and magnetism, thermodynamics, elasticity, and fluid mechanics. Moreover, he predicted the Arago spot in his attempt to disprove the wave theory of Augustin-Jean Fresnel.

While his interpretations of physical phenomena were often proven wrong by later researchers, his contributions to mathematics have stood the test of time. He demonstrated that physical problems could suggest new mathematical ideas.