MATHEMATICIAN

Peter Gustav Lejeune Dirichlet

1805 - 1859

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Johann Peter Gustav Lejeune Dirichlet (; German: [ləˈʒœn diʁiˈkleː]; 13 February 1805 – 5 May 1859) was a German mathematician. In number theory, he proved special cases of Fermat's Last Theorem and created analytic number theory. In analysis, he advanced the theory of Fourier series and was one of the first to give the modern formal definition of a function. In mathematical physics, he studied potential theory, boundary-value problems, and heat diffusion, and hydrodynamics. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Peter Gustav Lejeune Dirichlet is the 24th most popular mathematician (up from 35th in 2019), the 82nd most popular biography from Germany (up from 141st in 2019) and the 4th 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

Among mathematicians, Peter Gustav Lejeune Dirichlet ranks 24 out of 1,004. Before him are Jacob Bernoulli, Jean le Rond d'Alembert, Henri Poincaré, Pierre-Simon Laplace, David Hilbert, and Joseph Fourier. After him are Évariste Galois, Hero of Alexandria, John von Neumann, Srinivasa Ramanujan, Diophantus, and Gerolamo Cardano.

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Contemporaries

Among people born in 1805, Peter Gustav Lejeune Dirichlet ranks 3. Before him are Hans Christian Andersen, and Joseph Smith. After him are Princess Sophie of Bavaria, Alexis de Tocqueville, Giuseppe Mazzini, William Rowan Hamilton, Ferdinand de Lesseps, Maria Anna of Bavaria, Fanny Mendelssohn, Louis Auguste Blanqui, and Franz Xaver Winterhalter. Among people deceased in 1859, Peter Gustav Lejeune Dirichlet ranks 2. Before him is Alexander von Humboldt. After him are Klemens von Metternich, Alexis de Tocqueville, Oscar I of Sweden, Thomas Babington Macaulay, Wilhelm Grimm, Carl Ritter, Thomas De Quincey, John Vianney, Ferdinand II of the Two Sicilies, and Josip Jelačić.

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In Germany

Among people born in Germany, Peter Gustav Lejeune Dirichlet ranks 82 out of 7,253. Before him are Wenceslaus IV of Bohemia (1361), Richard Strauss (1864), Theodor Mommsen (1817), Helmut Kohl (1930), Emil Fischer (1852), and Christoph Willibald Gluck (1714). After him are Martin Bormann (1900), Henry IV, Holy Roman Emperor (1050), Clara Zetkin (1857), Otto II, Holy Roman Emperor (955), Wilhelm Wundt (1832), and Erich von Manstein (1887).

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Among MATHEMATICIANS In Germany

Among mathematicians born in Germany, Peter Gustav Lejeune Dirichlet ranks 4. Before him are Gottfried Wilhelm Leibniz (1646), Carl Friedrich Gauss (1777), and Bernhard Riemann (1826). After him are Gottlob Frege (1848), Emmy Noether (1882), August Ferdinand Möbius (1790), Friedrich Bessel (1784), Karl Weierstrass (1815), Ludolph van Ceulen (1540), Richard Dedekind (1831), and Regiomontanus (1436).

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