Peter Gustav Lejeune Dirichlet

1805 - 1859

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Johann Peter Gustav Lejeune Dirichlet (German: [ləˈʒœn diʀiˈkleː]; 13 February 1805 – 5 May 1859) was a German mathematician who made deep contributions to number theory (including creating the field of analytic number theory), and to the theory of Fourier series and other topics in mathematical analysis; he is credited with being one of the first mathematicians to give the modern formal definition of a function. Although his surname is Lejeune Dirichlet, he is commonly referred to as just Dirichlet, in particular for results named after him. Read more on Wikipedia

Since 2007, the English Wikipedia page of Peter Gustav Lejeune Dirichlet has received more than 412,269 page views. His biography is available in 56 different languages on Wikipedia (up from 55 in 2019). Peter Gustav Lejeune Dirichlet is the 37th most popular mathematician (down from 34th in 2019), the 158th most popular biography from Germany (down from 126th in 2019) and the 5th most popular German Mathematician.

Peter Gustav Lejeune Dirichlet was a German mathematician who is most famous for his work in number theory. He is responsible for the first rigorous proof of the Prime Number Theorem, which states that the number of primes less than or equal to a given number is asymptotic to the form n/ln(n).

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Among mathematicians, Peter Gustav Lejeune Dirichlet ranks 37 out of 828Before him are Georg Cantor, Kurt Gödel, Augustin-Louis Cauchy, Gerolamo Cardano, Gottlob Frege, and Luca Pacioli. After him are Ada Lovelace, Charles Sanders Peirce, Emmy Noether, George Boole, Eudoxus of Cnidus, and Johann Bernoulli.

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Among people born in 1805, Peter Gustav Lejeune Dirichlet ranks 3Before him are Hans Christian Andersen and Alexis de Tocqueville. After him are Giuseppe Mazzini, Princess Sophie of Bavaria, Joseph Smith, William Rowan Hamilton, Ferdinand de Lesseps, Louis Auguste Blanqui, Fanny Mendelssohn, Franz Xaver Winterhalter, and Maria Anna of Bavaria. Among people deceased in 1859, Peter Gustav Lejeune Dirichlet ranks 4Before him are Klemens von Metternich, Alexander von Humboldt, and Alexis de Tocqueville. After him are Oscar I of Sweden, John Vianney, Wilhelm Grimm, Washington Irving, Josip Jelačić, Ferdinand II of the Two Sicilies, Carl Ritter, and Louis Spohr.

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In Germany

Among people born in Germany, Peter Gustav Lejeune Dirichlet ranks 158 out of 5,289Before him are Hans-Georg Gadamer (1900), Johann Christian Bach (1735), Friedrich Ebert (1871), Alois Alzheimer (1864), Hermann von Helmholtz (1821), and Matthias Grünewald (1480). After him are Frederick William I of Prussia (1688), Friedrich Wöhler (1800), Gerhard Schröder (1944), Walter Model (1891), Erich Raeder (1876), and Ferdinand von Zeppelin (1838).


Among mathematicians born in Germany, Peter Gustav Lejeune Dirichlet ranks 5Before him are Carl Friedrich Gauss (1777), Gottfried Wilhelm Leibniz (1646), Bernhard Riemann (1826), and Gottlob Frege (1848). After him are Emmy Noether (1882), Ludolph van Ceulen (1540), Karl Weierstrass (1815), August Ferdinand Möbius (1790), Friedrich Bessel (1784), Richard Dedekind (1831), and Regiomontanus (1436).