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unusual facts about Poisson


Poisson's equation

The Poisson–Boltzmann equation plays a role in the development of the Debye–Hückel theory of dilute electrolyte solutions.


April Fools' Day

In 1508, French poet Eloy d'Amerval referred to a poisson d’avril (April fool, literally "April fish"), a possible reference to the holiday.

Canonical commutation relation

In 1946, Hip Groenewold demonstrated that a general systematic correspondence between quantum commutators and Poisson brackets could not hold consistently.

Giovanni Carandino

Then, under Lord North government on Ionian Islands, his talent was remarked and he was sent to study mathematics in Ecole polytechnique, under Biot, Cauchy, Poisson and Fourier.

Mathematical analysis

Poisson, Liouville, Fourier and others studied partial differential equations and harmonic analysis.

Nambu mechanics

In 1973, Yoichiro Nambu suggested a generalization involving Nambu-Poisson manifolds with more than one Hamiltonian.

Poisson regression

CrimeStat: CrimeStat has Poisson, Poisson NB1, Poisson-Gamma(negative binomial), and Poisson-Lognormal regression models.

Stata: Stata has a procedure for Poisson regression named "poisson", and for panel data "xtpoisson"

SPSS: In SPSS, Poisson regression is done by using the GENLIN command

Pompadour

Madame de Pompadour (1721-1764), Jeanne-Antoinette Poisson, Marquise de Pompadour, mistress of King Louis XV

Quantum chaos

The system becomes more chaotic as dynamical symmetries are broken by increasing the quantum defect; consequently, the distribution evolves from nearly a Poisson distribution (a) to a Wigner distribution (h).

Random graph

In a large range of random graphs of order n and size M(n) the distribution of the number of tree components of order k is asymptotically Poisson.

Stochastic simulation

A poisson-distributed random variable is usually used to describe the random number of events occuring over a certain time interval.

Victor-Ferdinand Bourgeois

He visited Étaples several times, where the port’s hustle and bustle offered him lively subjects, illustrated by canvases such as L’Arrivée du poisson and Retour des pêcheuses de crevettes, exhibited respectively at the 1907 and 1908 Salons.


see also