1. Graph Theory White Pages Percy John Heawood Percy John Heawood. 18611955 http//www-history.mcs.st-andrews.ac.uk/history/Mathematicians/Heawood.htmlStudents Some Old Graph http://www.cs.columbia.edu/~sanders/graphtheory/people/Heawood.PJ.html

2. Biography-center - Letter H Hermite Charles. 18221901. heawood percy. 1861-1955 http://www.biography-center.com/h.html

Visit a random biography ! Any language Arabic Bulgarian Catalan Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Norwegian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Turkish H 703 biographies www-history.mcs.st-and.ac.uk/~history/Mathematicians/Herigone.html www-history.mcs.st-and.ac.uk/~history/Mathematicians/De_L'Hopital.html www-history.mcs.st-and.ac.uk/~history/Mathematicians/Holder.html www-history.mcs.st-and.ac.uk/~history/Mathematicians/Hormander.html Haab, Otto www.whonamedit.com/doctor.cfm/1825.html Haanpää, Pentti www.kirjasto.sci.fi/haanpaa.htm www-history.mcs.st-and.ac.uk/~history/Mathematicians/Haar.html Haarlem, Cornelis van www.kfki.hu/~arthp/bio/c/cornelis/biograph.html Haavelmo, Trygve www.nobel.se/economics/laureates/1989/haavelmo-bio.html Haavikko, Paavo www.kirjasto.sci.fi/haavikko.htm Haber, Fritz www.nobel.se/chemistry/laureates/1918/haber-bio.html Habib ibn Zayd al-Ansari,

3. Heawood Percy John Heawood. Percy Heawood attended Queen Elizabeth's Grammar Schoolin Ipswich being awarded an Open Scholarship to study at Oxford in 1880. http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Heawood.html

Percy John Heawood Born: 8 Sept 1861 in Newport, Shropshire, England Died: 24 Jan 1955 in Durham, England Click the picture above to see two larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Percy Heawood attended Queen Elizabeth's Grammar School in Ipswich being awarded an Open Scholarship to study at Oxford in 1880. There Heawood was most influenced by Henry Smith and he went on to be a Wrangler in 1883 (the year in which Henry Smith died). Heawood was awarded a Junior Mathematical Scholarship in 1882 and a Senior Mathematical Scholarship in 1886. In 1886 he was also awarded the Lady Herschell Prize. In 1887 Heawood was appointed Lecturer in Mathematics at Durham Colleges (later Durham University). In fact Heawood worked at Durham University all his life being appointed to the Chair of Mathematics there in 1911. He did not retire until 1939 when he was 78 years of age but still went on to enjoy 16 years of retirement. Heawood spent 60 years of his life working on the four colour theorem . He published his first paper on the topic Map colour theorems in 1890 when he pointed out the mistake in Kempe 's proof. In the same paper he proves that five colours suffice. He also proved in this paper that for a surface of connectivity

4. Einige Der Bedeutenden Mathematiker Translate this page Hausdorff Felix, 1868-1942. Hermite Charles, 1822-1901. heawood percy, 1861-1955.Heron von Alexandrien, ~60 n.Chr. Hilbert David, 1862-1943. Hurwitz Adolf, 1859-1919. http://www.zahlenjagd.at/mathematiker.html

Einige der bedeutenden Mathematiker Abel Niels Hendrik Appolonius von Perga ~230 v.Chr. Archimedes von Syrakus 287-212 v.Chr. Babbage Charles Banach Stefan Bayes Thomas Bernoulli Daniel Bernoulli Jakob Bernoulli Johann Bernoulli Nicolaus Bessel Friedrich Wilhelm Bieberbach Ludwig Birkhoff Georg David Bolyai János Bolzano Bernhard Boole George Borel Emile Briggs Henry Brouwer L.E.J. Cantor Georg Ferdinand Carroll Lewis Cassini Giovanni Domenico Cardano Girolamo Cauchy Augustin Louis Cayley Arthur Ceulen, Ludolph van Chomsky Noel Chwarismi Muhammed Ibn Musa Al Church Alonzo Cohen Paul Joseph Conway John Horton Courant Richard D'Alembert Jean Le Rond De Morgan Augustus Dedekind Julius Wilhelm Richard Descartes René Dieudonné Jean Diophantos von Alexandria ~250 v. Chr. Dirac Paul Adrien Maurice Dirichlet Peter Gustav Lejeune Eratosthenes von Kyrene 276-194 v.Chr. Euklid von Alexandria ~300 v.Chr. Euler Leonhard Fatou Pierre Fermat Pierre de Fischer Ronald A Sir Fourier Jean-Baptiste-Joseph Fraenkel Adolf Frege Gottlob Frobenius Ferdinand Georg Galois Evariste Galton Francis Sir Gauß Carl Friedrich Germain Marie-Sophie Gödel Kurt Goldbach Christian Hadamard Jacques Hamilton William Rowan Hausdorff Felix Hermite Charles Heawood Percy Heron von Alexandrien ~60 n.Chr.

5. Virtual Encyclopedia Of Mathematics chandra harriot thomas hartley brian hartree douglas rayner hasse helmut hausdorfffelix heath thomas little heaviside oliver heawood percy john hecht daniel http://www.lacim.uqam.ca/~plouffe/Simon/supermath.html

Super-Index of Biographies of Mathematicians abel niels henrik abraham bar hiyya ha-nasi abraham max abu kamil shuja ibn aslam ibn muhammad ... zygmund antoni This index was automatically generated using a new tagging program written by Simon Plouffe at LaCIM

6. Heawood Percy John Heawood. Born 8 Sept 1861 in Newport, Shropshire, England Died 24Jan 1955 in Durham, England. Mathematiker Bild Show birthplace location. http://sfabel.tripod.com/mathematik/database/Heawood.html

Percy John Heawood Born: 8 Sept 1861 in Newport, Shropshire, England Died: 24 Jan 1955 in Durham, England Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Welcome page P J Heawood attended Queen Elizabeth's Grammar School in Ipswich being awarded an Open Scholarship to study at Oxford in 1880. There Heawood was most influenced by Henry Smith and he went on to be a Wrangler in 1883 (the year in which Henry Smith died). Heawood was awarded a Junior Mathematical Scholarship in 1882 and a Senior Mathematical Scholarship in 1886. In 1886 he was also awarded the Lady Herschell Prize. In 1887 Heawood was appointed Lecturer in Mathematics at Durham Colleges (later Durham University). In fact Heawood worked at Durham University all his life being appointed to the Chair of Mathematics there in 1911. He did not retire until 1939 when he was 78 years of age but still went on to enjoy 16 years of retirement. Heawood spent 60 years of his life working on the four colour theorem. He published his first paper on the topic Map colour theorems in 1890 when he pointed out the mistake in Kempe 's proof. In the same paper he proves that five colours suffice. He also proved in this paper that for a surface of connectivity h, a map requires at most

7. Poster Of Heawood Percy Heawood. died 45 years ago. 24th January 1955. Heawood madeimportant contributions to the four colour theorem. Find out more http://www.math.hcmuns.edu.vn/~algebra/history/history/Posters/124.html

8. References For Heawood References for percy J heawood. Articles GA Dirac, percy John heawood, J. LondonMath. Soc. J Duff, percy John heawood, Nature 75 (26 February), 1995), 368. http://www-gap.dcs.st-and.ac.uk/~history/References/Heawood.html

References for Percy J Heawood Articles: G A Dirac, Percy John Heawood, J. London Math. Soc. J Duff, Percy John Heawood, Nature (26 February), 1995), 368-. Main index Birthplace Maps Biographies Index History Topics ... Anniversaries for the year JOC/EFR February 1997 School of Mathematics and Statistics University of St Andrews, Scotland The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/history/References/Heawood.html

9. Lebensdaten Von Mathematikern Translate this page 1898 - 1979) Hausdorff, Felix (8.11.1868 - 26.1.1942) Heath, Thomas (1861 - 1940)Heavisde, Oliver (1850 - 1925) heawood, percy (1861 - 1955) Hecht, Daniel http://www.mathe.tu-freiberg.de/~hebisch/cafe/lebensdaten.html

Diese Seite ist dem Andenken meines Vaters Otto Hebisch (1917 - 1998) gewidmet. By our fathers and their fathers in some old and distant town from places no one here remembers come the things we've handed down. Marc Cohn Dies ist eine Sammlung, die aus verschiedenen Quellen stammt, u. a. aus Jean Dieudonne, Geschichte der Mathematik, 1700 - 1900, VEB Deutscher Verlag der Wissenschaften, Berlin 1985. Helmut Gericke, Mathematik in Antike und Orient - Mathematik im Abendland, Fourier Verlag, Wiesbaden 1992. Otto Toeplitz, Die Entwicklung der Infinitesimalrechnung, Springer, Berlin 1949. MacTutor History of Mathematics archive A B C ... Z Abbe, Ernst (1840 - 1909) Abel, Niels Henrik (5.8.1802 - 6.4.1829) Abraham bar Hiyya (1070 - 1130) Abraham, Max (1875 - 1922) Abu Kamil, Shuja (um 850 - um 930) Abu'l-Wafa al'Buzjani (940 - 998) Ackermann, Wilhelm (1896 - 1962) Adams, John Couch (5.6.1819 - 21.1.1892) Adams, John Frank (5.11.1930 - 7.1.1989) Adelard von Bath (1075 - 1160) Adler, August (1863 - 1923) Adrain, Robert (1775 - 1843)

10. Neue Seite 1 Translate this page Heath, Thomas (1861 - 1940). Heavisde, Oliver (1850 - 1925). heawood, percy(1861 - 1955). Hecht, Daniel (1777 - 1833). Hecke, Erich (1887 - 1947). http://www.mathe-ecke.de/mathematiker.htm

Abbe, Ernst (1840 - 1909) Abel, Niels Henrik (5.8.1802 - 6.4.1829) Abraham bar Hiyya (1070 - 1130) Abraham, Max (1875 - 1922) Abu Kamil, Shuja (um 850 - um 930) Abu'l-Wafa al'Buzjani (940 - 998) Ackermann, Wilhelm (1896 - 1962) Adams, John Couch (5.6.1819 - 21.1.1892) Adams, John Frank (5.11.1930 - 7.1.1989) Adelard von Bath (1075 - 1160) Adler, August (1863 - 1923) Adrain, Robert (1775 - 1843) Aepinus, Franz Ulrich Theodosius (13.12.1724 - 10.8.1802) Agnesi, Maria (1718 - 1799) Ahlfors, Lars (1907 - 1996) Ahmed ibn Yusuf (835 - 912) Ahmes (um 1680 - um 1620 v. Chr.) Aida Yasuaki (1747 - 1817) Aiken, Howard Hathaway (1900 - 1973) Airy, George Biddell (27.7.1801 - 2.1.1892) Aithoff, David (1854 - 1934) Aitken, Alexander (1895 - 1967) Ajima, Chokuyen (1732 - 1798) Akhiezer, Naum Il'ich (1901 - 1980) al'Battani, Abu Allah (um 850 - 929) al'Biruni, Abu Arrayhan (973 - 1048) al'Chaijami (? - 1123) al'Haitam, Abu Ali (965 - 1039) al'Kashi, Ghiyath (1390 - 1450) al'Khwarizmi, Abu Abd-Allah ibn Musa (um 790 - um 850) Albanese, Giacomo (1890 - 1948) Albert von Sachsen (1316 - 8.7.1390)

11. Heawood Biography of percy J heawood (18611955) percy John heawood. Born 8 Sept 1861 in Newport, Shropshire, England http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Heawood.html

Percy John Heawood Born: 8 Sept 1861 in Newport, Shropshire, England Died: 24 Jan 1955 in Durham, England Click the picture above to see two larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Percy Heawood attended Queen Elizabeth's Grammar School in Ipswich being awarded an Open Scholarship to study at Oxford in 1880. There Heawood was most influenced by Henry Smith and he went on to be a Wrangler in 1883 (the year in which Henry Smith died). Heawood was awarded a Junior Mathematical Scholarship in 1882 and a Senior Mathematical Scholarship in 1886. In 1886 he was also awarded the Lady Herschell Prize. In 1887 Heawood was appointed Lecturer in Mathematics at Durham Colleges (later Durham University). In fact Heawood worked at Durham University all his life being appointed to the Chair of Mathematics there in 1911. He did not retire until 1939 when he was 78 years of age but still went on to enjoy 16 years of retirement. Heawood spent 60 years of his life working on the four colour theorem . He published his first paper on the topic Map colour theorems in 1890 when he pointed out the mistake in Kempe 's proof. In the same paper he proves that five colours suffice. He also proved in this paper that for a surface of connectivity

12. VEDA ledna 1955 v Durhamu, Anglie. percy heawood navštevoval Gymnázium královny Elisabethv Ipswichu, kde v roce 1880 získal stipendium ke studiu na Oxfordu. http://pes.eunet.cz/veda/clanky/15266_0_0_0.html

NEVIDITELNÝ PES EUROPE'S ZVÍØETNÍK BYDLENÍ ... ENCYKLOPEDIE Úterý 25.9.2001 Svátek má Zlata Biologie a pøíroda Vesmír Fyzika Medicína ... Archiv vydání Nadpis Autor Text èlánku Nabídka online služby ProQuest 5000 se rozrostla do konce roku o tøi databáze Národní licence na elektronickou informaèní sužbu ProQuest 5000, díky níž mají od loòského roku vysoké školy, Akademie vìd ÈR, veøejné knihovny a další instituce možnost bezplatného pøístupu ke ètyøem tisícùm odborných èasopisù, byla doèasnì -od 1. záøí do 31. prosince 2001 - rozšíøena o další tøi významné oborové databáze: AGRICOLA PlusText, ERIC PlusText a MEDLINE with Full Text. Hlavní pøednost tìchto informaèních zdrojù spoèívá v tom, že spojují kvalitní indexování èlánkù pomocí øízených slovníkù (tezaurù) èásteènì s jejich plnými texty. AGRICOLA PlusText pokrývá zemìdìlství, veterinární lékaøství, lesnictví, ekologii, zoologii, botaniku a výživu. Databáze zahrnuje bibliografické záznamy z více než 830 èasopisù od roku 1970 (z toho je 52 titulù k dispozici v plném znìní s prùmìrnì ètyøletou retrospektivou - napø. Biochemistry, Bioscience, Canadian Journal of Zoology, Journal of Nutrition aj.). ERIC FullText je zamìøena na rùzné aspekty vzdìlávání (vèetnì vývojové psychologie, protidrogové prevence, managementu škol, poradenství, výuky odborných pøedmìtù, celoživotního vzdìlávání) a rovnìž na knihovnictví. Úplná retrospektiva bibliografických záznamù z 1060 èasopisù sahá do roku 1966 (zhruba ètvrtina z nich je pøístupná v plnotextové podobì od roku 1994 - napø. Adult Education, Communication and Education, Harvard Educational Policy, Journal of Higher Education aj.). MEDLINE with Full Text obsahuje 11 miliónù záznamù ze 4300 medicínských èasopisù, z nichž 230 je pøístupných v plném znìní od roku 1997 (napø. AIDS Care, British Medical Journal, Canadian Medical Association Journal, JAMA, Journal of the American Medical Association, Lancet aj.). Texty jsou doprovázeny reprodukcemi fotografií, schémat a tabulek.

13. VEDA 25.9. MATEMATIKOVÉ V HISTORII percy John heawood Jirí Svršek Kromematematiky má heawood ješte jednu významnou zásluhu. http://pes.eunet.cz/veda/48_0_0/1001455200.html

NEVIDITELNÝ PES EUROPE'S ZVÍØETNÍK BYDLENÍ ... ENCYKLOPEDIE Støeda 26.9.2001 Svátek má Andrea Biologie a pøíroda Vesmír Fyzika Medicína ... Archiv vydání Nadpis Autor Text èlánku Nabídka online služby ProQuest 5000 se rozrostla do konce roku o tøi databáze Národní licence na elektronickou informaèní sužbu ProQuest 5000, díky níž mají od loòského roku vysoké školy, Akademie vìd ÈR, veøejné knihovny a další instituce možnost bezplatného pøístupu ke ètyøem tisícùm odborných èasopisù, byla doèasnì -od 1. záøí do 31. prosince 2001 - rozšíøena o další tøi významné oborové databáze: AGRICOLA PlusText, ERIC PlusText a MEDLINE with Full Text. Hlavní pøednost tìchto informaèních zdrojù spoèívá v tom, že spojují kvalitní indexování èlánkù pomocí øízených slovníkù (tezaurù) èásteènì s jejich plnými texty. AGRICOLA PlusText pokrývá zemìdìlství, veterinární lékaøství, lesnictví, ekologii, zoologii, botaniku a výživu. Databáze zahrnuje bibliografické záznamy z více než 830 èasopisù od roku 1970 (z toho je 52 titulù k dispozici v plném znìní s prùmìrnì ètyøletou retrospektivou - napø. Biochemistry, Bioscience, Canadian Journal of Zoology, Journal of Nutrition aj.). ERIC FullText je zamìøena na rùzné aspekty vzdìlávání (vèetnì vývojové psychologie, protidrogové prevence, managementu škol, poradenství, výuky odborných pøedmìtù, celoživotního vzdìlávání) a rovnìž na knihovnictví. Úplná retrospektiva bibliografických záznamù z 1060 èasopisù sahá do roku 1966 (zhruba ètvrtina z nich je pøístupná v plnotextové podobì od roku 1994 - napø. Adult Education, Communication and Education, Harvard Educational Policy, Journal of Higher Education aj.). MEDLINE with Full Text obsahuje 11 miliónù záznamù ze 4300 medicínských èasopisù, z nichž 230 je pøístupných v plném znìní od roku 1997 (napø. AIDS Care, British Medical Journal, Canadian Medical Association Journal, JAMA, Journal of the American Medical Association, Lancet aj.). Texty jsou doprovázeny reprodukcemi fotografií, schémat a tabulek.

14. Heawood Portraits percy J heawood. JOC/EFR August 2001 http://www-history.mcs.st-and.ac.uk/history/PictDisplay/Heawood.html

Percy J Heawood JOC/EFR August 2001 The URL of this page is: http://www-history.mcs.st-andrews.ac.uk/history/PictDisplay/Heawood.html

15. Heawood Graph heawood graph. percy John heawood (18611955) was an English mathematician whospent a large amount of time on questions related to the four colour theorem. http://www.win.tue.nl/~aeb/drg/graphs/Heawood.html

Heawood graph Percy John Heawood (1861-1955) was an English mathematician who spent a large amount of time on questions related to the four colour theorem. . It is the point-line incidence graph of the Fano plane, and is commonly called the Heawood graph. It occurs as subgraph of the Hoffman-Singleton graph It is the unique (3,6)- cage : the regular cubic graph of girth 6 with minimal number of vertices. co-Heawood graph . It occurs as subgraph of the Gewirtz graph Group The full group of automorphisms is PGL(2,7) = L (2).2, acting distance-transitively with point stabilizer S Subgraphs Substructures belonging to the maximal subgroups of the automorphism group: a) A partition of the edges into three matchings . There are 8 of these, forming a single orbit. The stabilizer of one is 7:6, with vertex orbit size 14. (There are 24 matchings. The complement of a matching is a 14-cycle that decomposes unique into two matchings. So, matchings come in groups of three.) b) A vertex . There are 14 of these, forming a single orbit. The stabilizer of one is S , with vertex orbit sizes 1+3+6+4.

16. OPE-MAT - Mathématiciens Heaviside, Oliver Hille, Einar Hutton, Charles heawood, percy Hindenburg, Carl Huygens, Christiaan Hecht, Daniel http://www.gci.ulaval.ca/PIIP/math-app/Historique

17. Biografisk Register Translate this page 1560-1621) Hausdorff, Felix (1868-1942) Heath, Thomas Little (1861-1940) heawood,percy John (1861-1955) Heeger, Kurt Heiberg, Johan Ludvig (1854-1928 http://www.geocities.com/CapeCanaveral/Hangar/3736/biografi.htm

Biografisk register Matematikerne er ordnet alfabetisk på bakgrunn av etternavn. Linker angir at personen har en egen artikkel her. Fødsels- og dødsår oppgis der dette har vært tilgjengelig. Abel, Niels Henrik Abu Kamil (ca. 850-930) Ackermann, Wilhelm (1896-1962) Adelard fra Bath (1075-1160) Agnesi, Maria G. (1718-99) al-Karaji (rundt 1000) al-Khwarizmi, Abu Abd-Allah Ibn Musa (ca. 790-850) Anaximander (610-547 f.Kr.) Apollonis fra Perga (ca. 262-190 f.Kr.) Appel, Kenneth Archytas fra Taras (ca. 428-350 f.Kr.) Argand, Jean Robert (1768-1822) Aristoteles (384-322 f.Kr.) Arkimedes (287-212 f.Kr.) Arnauld, Antoine (1612-94) Aryabhata (476-550) Aschbacher, Michael Babbage, Charles (1792-1871) Bachmann, Paul Gustav (1837-1920) Bacon, Francis (1561-1626) Baker, Alan (1939-) Ball, Walter W. R. (1892-1945) Banach, Stéfan (1892-1945) Banneker, Benjamin Berkeley, George (1658-1753) Bernoulli, Jacques (1654-1705) Bernoulli, Jean (1667-1748) Bernstein, Felix (1878-1956) Bertrand, Joseph Louis Francois (1822-1900) Bharati Krsna Tirthaji, Sri (1884-1960)

18. Full Alphabetical Index Translate this page Douglas (436*) Hasse, Helmut (1189*) Hausdorff, Felix (345*) Hawking, Stephen (1282*)Heath, Thomas (199*) Heaviside, Oliver (1209*) heawood, percy (596*) Hecht http://www.geocities.com/Heartland/Plains/4142/matematici.html

Completo Indice Alfabetico Cliccare su una lettera sottostante per andare a quel file. A B C D ... XYZ Cliccare sotto per andare agli indici alfabetici separati A B C D ... XYZ Il numero di parole nella biografia e' dato in parentesi. Un * indica che c'e' un ritratto. A Abbe , Ernst (602*) Abel , Niels Henrik (286*) Abraham bar Hiyya (240) Abraham, Max Abu Kamil Shuja (59) Abu'l-Wafa al'Buzjani (243) Ackermann , Wilhelm (196) Adams, John Couch Adams, Frank Adelard of Bath (89) Adler , August (114) Adrain , Robert (79) Aepinus , Franz (124) Agnesi , Maria (196*) Ahlfors , Lars (725*) Ahmed ibn Yusuf (60) Ahmes Aida Yasuaki (114) Aiken , Howard (94) Airy , George (313*) Aitken , Alexander (825*) Ajima , Chokuyen (144) Akhiezer , Naum Il'ich (248*) al'Battani , Abu Allah (194) al'Biruni , Abu Arrayhan (306*) al'Haitam , Abu Ali (269*) al'Kashi , Ghiyath (73) al'Khwarizmi , Abu (123*) Albanese , Giacomo (282) Albert of Saxony Albert, Abraham Adrian (121*) (158*) Alberti , Leone (181*) Alberto Magno, San (109*) Alcuin di York (237*) Aleksandrov , Pave (160*) Alembert , Jean d' (291*) Alexander , James (163) Amringe , Howard van (354*) Amsler , Jacob (82) Anassagora di Clazomenae (169) Anderson , Oskar (67) Andreev , Konstantin (117) Angeli , Stefano degli (234) Anstice , Robert (209) Antemio of Tralles (55) Antifone il Sofista (125) Apollonio di Perga (276) Appell , Paul (1377) Arago , Dominique (345*) Arbogasto , Louis (87) Arbuthnot , John (251*) Archimede di Siracusa (467*) Archita of Tarentum (103) Argand , Jean (81) Aristeo il Vecchio (44) Aristarco di Samo (183) Aristotele Arnauld , Antoine (179)

19. A Critical Eye Euler characteristic of the surface. PG Tait Further contributedto the Theorem. percy heawood - Refuted all of Kempe’s proof. http://www.bishops.ntc.nf.ca/math/content/mapcolour/tsld018.htm

A Critical Eye Kempe was unable to solve the problems brought up by Heawood. Heawood further investigated the problem, and gave us the Heawood Estimate, for the necessary number, in terms of the Euler characteristic of the surface. P. G. Tait - Further contributed to the Theorem. Percy Heawood - Refuted all of Kempe’s proof. Previous slide Next slide Back to first slide View graphic version

20. OPE-MAT - Historique Translate this page Felix Hilbert, David Hurewicz, Witold Heath, Thomas Hill, George Hurwitz, Adolf Heaviside,Oliver Hille, Einar Hutton, Charles heawood, percy Hindenburg, Carl http://www.gci.ulaval.ca/PIIP/math-app/Historique/mat.htm

A Abel , Niels Akhiezer , Naum Anthemius of Tralles Abraham bar Hiyya al'Battani , Abu Allah Antiphon the Sophist Abraham, Max al'Biruni , Abu Arrayhan Apollonius of Perga Abu Kamil Shuja al'Haitam , Abu Ali Appell , Paul Abu'l-Wafa al'Buzjani al'Kashi , Ghiyath Arago , Francois Ackermann , Wilhelm al'Khwarizmi , Abu Arbogast , Louis Adams , John Couch Albert of Saxony Arbuthnot , John Adelard of Bath Albert , Abraham Archimedes of Syracuse Adler , August Alberti , Leone Battista Archytas of Tarentum Adrain , Robert Albertus Magnus, Saint Argand , Jean Aepinus , Franz Alcuin of York Aristaeus the Elder Agnesi , Maria Alekandrov , Pavel Aristarchus of Samos Ahmed ibn Yusuf Alexander , James Aristotle Ahmes Arnauld , Antoine Aida Yasuaki Amsler , Jacob Aronhold , Siegfried Aiken , Howard Anaxagoras of Clazomenae Artin , Emil Airy , George Anderson , Oskar Aryabhata the Elder Aitken , Alexander Angeli , Stefano degli Atwood , George Ajima , Chokuyen Anstice , Robert Richard Avicenna , Abu Ali B Babbage , Charles Betti , Enrico Bossut , Charles Bachet Beurling , Arne Bouguer , Pierre Bachmann , Paul Boulliau , Ismael Bacon , Roger Bhaskara Bouquet , Jean Backus , John Bianchi , Luigi Bour , Edmond Baer , Reinhold Bieberbach , Ludwig Bourgainville , Louis Baire Billy , Jacques de Boutroux , Pierre Baker , Henry Binet , Jacques Bowditch , Nathaniel Ball , W W Rouse Biot , Jean-Baptiste Bowen , Rufus Balmer , Johann Birkhoff , George Boyle , Robert Banach , Stefan Bjerknes, Carl

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