MATHEMATICIAN
Poul Heegaard
1871 - 1948
Poul Heegaard
Poul Heegaard (Danish: [ˈhe̝ˀˌkɒˀ] ; November 2, 1871, Copenhagen - February 7, 1948, Oslo) was a Danish mathematician active in the field of topology. His 1898 thesis introduced a concept now called the Heegaard splitting of a 3-manifold. Heegaard's ideas allowed him to make a careful critique of work of Henri Poincaré. Read more on Wikipedia
Since 2007, the English Wikipedia page of Poul Heegaard has received more than 21,843 page views. His biography is available in 16 different languages on Wikipedia (up from 15 in 2019). Poul Heegaard is the 891st most popular mathematician (down from 833rd in 2019), the 611th most popular biography from Denmark (down from 567th in 2019) and the 8th most popular Danish Mathematician.
Memorability Metrics
22k
Page Views (PV)
51.33
Historical Popularity Index (HPI)
16
Languages Editions (L)
6.22
Effective Languages (L*)
1.79
Coefficient of Variation (CV)
Among MATHEMATICIANS
Among mathematicians, Poul Heegaard ranks 891 out of 1,004. Before him are Norman Johnson, Cleve Moler, Hellmuth Kneser, Hjalmar Mellin, Richard K. Guy, and Mikhail Suslin. After him are Robin Hartshorne, Yury Osipov, Caucher Birkar, Clifford Truesdell, Daina Taimiņa, and Adele Goldstine.
Most Popular Mathematicians in Wikipedia
Go to all RankingsNorman Johnson
1930 - 2017
HPI: 51.50
Rank: 885
Cleve Moler
1939 - Present
HPI: 51.50
Rank: 886
Hellmuth Kneser
1898 - 1973
HPI: 51.42
Rank: 887
Hjalmar Mellin
1854 - 1933
HPI: 51.39
Rank: 888
Richard K. Guy
1916 - 2020
HPI: 51.38
Rank: 889
Mikhail Suslin
1894 - 1919
HPI: 51.37
Rank: 890
Poul Heegaard
1871 - 1948
HPI: 51.33
Rank: 891
Robin Hartshorne
1938 - Present
HPI: 51.29
Rank: 892
Yury Osipov
1936 - Present
HPI: 51.18
Rank: 893
Caucher Birkar
1978 - Present
HPI: 51.15
Rank: 894
Clifford Truesdell
1919 - 2000
HPI: 51.14
Rank: 895
Daina Taimiņa
1954 - Present
HPI: 51.11
Rank: 896
Adele Goldstine
1920 - 1964
HPI: 51.11
Rank: 897
Contemporaries
Among people born in 1871, Poul Heegaard ranks 164. Before him are Heinrich Schroth, Henry Stephenson, Wilfred Lucas, Max Bodenstein, Yoshioka Yayoi, and Clarence Hudson White. After him are Jack Butler Yeats, William Diller Matthew, John Sloan, Eugen Burg, Anne Sewell Young, and Reginald Aldworth Daly. Among people deceased in 1948, Poul Heegaard ranks 180. Before him are Thomas Mofolo, Frank Benford, John Anderson, James Young, Mary Eaton, and George Mehnert. After him are René Benjamin, István Barta, Carl Abrahamsson, Joseph Friedrich Nicolaus Bornmüller, Elissa Landi, and Samuel S. Hinds.
Others Born in 1871
Go to all RankingsHeinrich Schroth
ACTOR
1871 - 1945
HPI: 51.58
Rank: 158
Henry Stephenson
ACTOR
1871 - 1956
HPI: 51.51
Rank: 159
Wilfred Lucas
ACTOR
1871 - 1940
HPI: 51.50
Rank: 160
Max Bodenstein
CHEMIST
1871 - 1942
HPI: 51.46
Rank: 161
Yoshioka Yayoi
PHYSICIAN
1871 - 1959
HPI: 51.43
Rank: 162
Clarence Hudson White
PHOTOGRAPHER
1871 - 1925
HPI: 51.37
Rank: 163
Poul Heegaard
MATHEMATICIAN
1871 - 1948
HPI: 51.33
Rank: 164
Jack Butler Yeats
PAINTER
1871 - 1957
HPI: 51.19
Rank: 165
William Diller Matthew
BIOLOGIST
1871 - 1930
HPI: 51.17
Rank: 166
John Sloan
PAINTER
1871 - 1951
HPI: 50.91
Rank: 167
Eugen Burg
ACTOR
1871 - 1944
HPI: 50.86
Rank: 168
Anne Sewell Young
ASTRONOMER
1871 - 1961
HPI: 50.85
Rank: 169
Reginald Aldworth Daly
GEOLOGIST
1871 - 1957
HPI: 50.54
Rank: 170
Others Deceased in 1948
Go to all RankingsThomas Mofolo
WRITER
1876 - 1948
HPI: 52.35
Rank: 174
Frank Benford
PHYSICIST
1883 - 1948
HPI: 52.17
Rank: 175
John Anderson
ATHLETE
1907 - 1948
HPI: 51.99
Rank: 176
James Young
FILM DIRECTOR
1872 - 1948
HPI: 51.84
Rank: 177
Mary Eaton
ACTOR
1901 - 1948
HPI: 51.68
Rank: 178
George Mehnert
WRESTLER
1881 - 1948
HPI: 51.47
Rank: 179
Poul Heegaard
MATHEMATICIAN
1871 - 1948
HPI: 51.33
Rank: 180
René Benjamin
WRITER
1885 - 1948
HPI: 51.28
Rank: 181
István Barta
ATHLETE
1895 - 1948
HPI: 50.89
Rank: 182
Carl Abrahamsson
ATHLETE
1896 - 1948
HPI: 50.61
Rank: 183
Joseph Friedrich Nicolaus Bornmüller
BIOLOGIST
1862 - 1948
HPI: 50.58
Rank: 184
Elissa Landi
ACTOR
1904 - 1948
HPI: 50.52
Rank: 185
Samuel S. Hinds
ACTOR
1875 - 1948
HPI: 50.48
Rank: 186
In Denmark
Among people born in Denmark, Poul Heegaard ranks 611 out of 1,032. Before him are Per Stig Møller (1942), Agnes Obel (1980), Axel Andersen (1891), Kent Nielsen (1961), Henning Christophersen (1939), and Niels Petersen (1885). After him are John Tchicai (1936), Søren Petersen (1894), Niklas Landin Jacobsen (1988), Karl Dane (1886), Thomas Delaney (1991), and Jesper Kyd (1972).
Others born in Denmark
Go to all RankingsPer Stig Møller
POLITICIAN
1942 - Present
HPI: 51.45
Rank: 605
Agnes Obel
SINGER
1980 - Present
HPI: 51.43
Rank: 606
Axel Andersen
GYMNAST
1891 - 1931
HPI: 51.43
Rank: 607
Kent Nielsen
COACH
1961 - Present
HPI: 51.39
Rank: 608
Henning Christophersen
POLITICIAN
1939 - 2016
HPI: 51.39
Rank: 609
Niels Petersen
GYMNAST
1885 - 1961
HPI: 51.35
Rank: 610
Poul Heegaard
MATHEMATICIAN
1871 - 1948
HPI: 51.33
Rank: 611
John Tchicai
MUSICIAN
1936 - 2012
HPI: 51.33
Rank: 612
Søren Petersen
BOXER
1894 - 1945
HPI: 51.32
Rank: 613
Niklas Landin Jacobsen
HANDBALL PLAYER
1988 - Present
HPI: 51.31
Rank: 614
Karl Dane
ACTOR
1886 - 1934
HPI: 51.18
Rank: 615
Thomas Delaney
SOCCER PLAYER
1991 - Present
HPI: 51.18
Rank: 616
Jesper Kyd
COMPOSER
1972 - Present
HPI: 51.16
Rank: 617
Among MATHEMATICIANS In Denmark
Among mathematicians born in Denmark, Poul Heegaard ranks 8. Before him are Piet Hein (1905), Agner Krarup Erlang (1878), Julius Petersen (1839), Georg Mohr (1640), Johan Jensen (1859), and Jørgen Pedersen Gram (1850).
Piet Hein
1905 - 1996
HPI: 64.68
Rank: 2
Agner Krarup Erlang
1878 - 1929
HPI: 57.93
Rank: 3
Julius Petersen
1839 - 1910
HPI: 57.15
Rank: 4
Georg Mohr
1640 - 1697
HPI: 56.91
Rank: 5
Johan Jensen
1859 - 1925
HPI: 56.25
Rank: 6
Jørgen Pedersen Gram
1850 - 1916
HPI: 52.43
Rank: 7
Poul Heegaard
1871 - 1948
HPI: 51.33
Rank: 8