MATHEMATICIAN

Kenneth Appel

1932 - 2013

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Kenneth Ira Appel (October 8, 1932 – April 19, 2013) was an American mathematician who in 1976, with colleague Wolfgang Haken at the University of Illinois at Urbana–Champaign, solved one of the most famous problems in mathematics, the four-color theorem. Read more on Wikipedia

Since 2007, the English Wikipedia page of Kenneth Appel has received more than 98,369 page views. His biography is available in 19 different languages on Wikipedia (up from 18 in 2019). Kenneth Appel is the 665th most popular mathematician (up from 812th in 2019), the 5,781st most popular biography from United States (up from 9,207th in 2019) and the 44th most popular American Mathematician.

Memorability Metrics

  • 98k

    Page Views (PV)

  • 49.41

    Historical Popularity Index (HPI)

  • 19

    Languages Editions (L)

  • 6.21

    Effective Languages (L*)

  • 2.15

    Coefficient of Variation (CV)

Among MATHEMATICIANS

Among mathematicians, Kenneth Appel ranks 665 out of 1,004. Before him are Cesare Arzelà, Oswald Veblen, Alessandro Galilei, Saunders Mac Lane, Đuro Kurepa, and Arnaud Denjoy. After him are Pierre-Louis Lions, Johan Jensen, John Lennox, Theodosius of Bithynia, Tommaso Ceva, and Sofya Yanovskaya.

Most Popular Mathematicians in Wikipedia

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Contemporaries

Among people born in 1932, Kenneth Appel ranks 290. Before him are Otto Schily, Otis Davis, Antonio Roma, Sígfrid Gràcia, Marc Fumaroli, and Atef Ebeid. After him are Francisco Umbral, Maria Itkina, Robert Taylor, Hans van Manen, Donald Kagan, and Raymond Kaelbel. Among people deceased in 2013, Kenneth Appel ranks 282. Before him are Diane Disney Miller, Antonio Roma, Ramon Dekkers, Vivi Bach, Miguel Poblet, and Marcia Wallace. After him are Michel Brault, Paolo Soleri, Helen Thomas, Harold Agnew, John Thomas, and Hennadiy Udovenko.

Others Born in 1932

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Others Deceased in 2013

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In United States

Among people born in United States, Kenneth Appel ranks 5,781 out of 20,380. Before him are Marcia Wallace (1942), Jean Shiley (1911), Rooney Mara (1985), Florence Bascom (1862), Jennifer Capriati (1976), and Godfrey Reggio (1940). After him are Krista Allen (1971), Sylvester (1947), Dick Powell (1904), Van Johnson (1916), Connie Willis (1945), and Linda Perry (1965).

Others born in United States

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Among MATHEMATICIANS In United States

Among mathematicians born in United States, Kenneth Appel ranks 44. Before him are Richard Montague (1930), Robert Axelrod (1943), Leonard Eugene Dickson (1874), Harold Hotelling (1895), Oswald Veblen (1880), and Saunders Mac Lane (1909). After him are David Gale (1921), Daniel Quillen (1940), Charles Fefferman (1949), Gladys West (1930), Solomon W. Golomb (1932), and Rudy Rucker (1946).

American born Mathematicians

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