MATHEMATICIAN

Lothar Collatz

1910 - 1990

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Lothar Collatz (German: [ˈkɔlaʦ]; July 6, 1910 – September 26, 1990) was a German mathematician, born in Arnsberg, Westphalia. The "3x + 1" problem is also known as the Collatz conjecture, named after him and still unsolved. Read more on Wikipedia

Since 2007, the English Wikipedia page of Lothar Collatz has received more than 129,487 page views. His biography is available in 22 different languages on Wikipedia (up from 19 in 2019). Lothar Collatz is the 362nd most popular mathematician (up from 451st in 2019), the 2,403rd most popular biography from Germany (up from 2,971st in 2019) and the 42nd most popular German Mathematician.

Memorability Metrics

  • 130k

    Page Views (PV)

  • 55.26

    Historical Popularity Index (HPI)

  • 22

    Languages Editions (L)

  • 6.72

    Effective Languages (L*)

  • 2.02

    Coefficient of Variation (CV)

Among MATHEMATICIANS

Among mathematicians, Lothar Collatz ranks 362 out of 1,004. Before him are Emil Leon Post, Albert Girard, Julius Plücker, Madhava of Sangamagrama, Rudolf Lipschitz, and Kurt Hensel. After him are Ivan Vinogradov, Bruno Abakanowicz, Heisuke Hironaka, George Green, Otto Hesse, and Roger Cotes.

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Contemporaries

Among people born in 1910, Lothar Collatz ranks 111. Before him are Dorothea Tanning, Sylvia Sidney, Rudolf Kempe, Ramaswamy Venkataraman, Félix Candela, and Ruan Lingyu. After him are Fritz Leiber, John W. Campbell, Cao Yu, Ngapoi Ngawang Jigme, Hazi Aslanov, and Bernard Voorhoof. Among people deceased in 1990, Lothar Collatz ranks 89. Before him are Eduard Streltsov, Vijaya Lakshmi Pandit, Thorbjørn Egner, Tom Fogerty, Mariano Rumor, and Alan Perlis. After him are Juan José Arévalo, Horst Sindermann, Vaso Čubrilović, Carlos Peucelle, Hayedeh, and Semyon Kurkotkin.

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Others Deceased in 1990

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In Germany

Among people born in Germany, Lothar Collatz ranks 2,403 out of 7,253. Before him are Helmut Lachenmann (1935), Johanna Budwig (1908), William I, Margrave of Meissen (1343), Julius Plücker (1801), Arp Schnitger (1648), and Frederick William, Elector of Hesse (1802). After him are Hans Albers (1891), August von Platen-Hallermünde (1796), Matthäus Daniel Pöppelmann (1662), Karl Krumbacher (1856), Albert Alcibiades, Margrave of Brandenburg-Kulmbach (1522), and Erich Topp (1914).

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Among MATHEMATICIANS In Germany

Among mathematicians born in Germany, Lothar Collatz ranks 42. Before him are Wilhelm Ackermann (1896), Gotthold Eisenstein (1823), August Leopold Crelle (1780), Johann Friedrich Pfaff (1765), Nicholas Mercator (1620), and Julius Plücker (1801). After him are Felix Bernstein (1878), Philipp Ludwig von Seidel (1821), Elwin Bruno Christoffel (1829), Hans Freudenthal (1905), Abraham Fraenkel (1891), and Carl Ludwig Siegel (1896).

German born Mathematicians

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