New Page 1 Translate this page donald coxeter. Né à Londres le 9 février 1907, de son vrai nom HaroldScott Macdonald coxeter, il est mieux connu sous le surnom de donald. http://www.brunette.brucity.be/max/lespages/escher/coxeter.htm
Extractions: DONALD COXETER Né à Londres le 9 février 1907, de son vrai nom Harold Scott MacDonald Coxeter, il est mieux connu sous le surnom de Donald. Etudiant à lUniversité de Cambridge, il obtient sa licence en 1929. En 1931, ayant acquis son doctorat à Cambridge même, il y reste pour poursuivre des recherches. Durant lannée 1936, un poste à lUniversité de Toronto soffre à lui, université pour laquelle il travaille depuis plus de 60 ans. Coxeter a surtout travaillé en géométrie où il a grandement contribué à lévolution de la théorie des polytopes et à la géométrie non euclidienne. Ces polytopes sont des formes géométriques que lon augmente dune dimension, ce procédé étant appelé Dimensional Analogy. Ainsi, il étend la géométrie des polytopes à la quatrième dimension et même au-delà. Ce que motive Coxeter dans ses recherches est la beauté des mathématiques. Dailleurs, Robert Moody de la York University de Toronto considère que les sciences modernes, dont en font partie les mathématiques, suivent une certaine mode. Ce quil trouve de remarquable au style de Coxeter est sa faculté déchapper à un phénomène de mode et de nêtre guidé que par ce quest la beauté. De plus, son goût pour les domaines artistiques est aussi marqué par son intérêt pour la musique. En effet, il aurait désiré être compositeur avant de se lancer dans les mathématiques. A lâge de 14 ans, ayant trop de facilité à lécole, il imagine les formes géométriques en dimensions supérieures et rédige déjà ses premières idées à ce sujet. Son père, grand ami du philosophe Bertrand Russell, amène son fils chez celui-ci. Russell aide Coxeter à se trouver un excellent professeur de mathématiques, le Professeur H.F. Baker de lUniversité de Cambridge.
Extractions: It is known [H.S.M. Coxeter, 'Loxodromic Sequences of Tangent Spheres', , 1 (1968), pp. 112-117] that, for a sequence of circles s n such that every 4 consecutive members are mutually tangent, the inversive distance d n between s and s n (or between s m and s m+n for any m ) is given in terms of the Fibonacci numbers f n by the formula For the analogous sequence of spheres, such that every 5 consecutive members are mutually tangent, a prize is offered to the first person who provides the analogous formula for the inversive distances between pairs of the spheres. Meanwhile, by taking one pair of adjacent 'spheres' to be a pair of parallel planes, one easily finds that the values of cosh d n are n cosh d n John Robinson's sculpture FIRMAMENT is based on seven such spheres whose radii are in geometric progression; that is, the seven radii are proportional to 1/x , 1/x , 1/ x, 1, x, x , x where x is the root, between 1 and 2, of the quintic equation x - x - x - x - x + 1 = . This equation has a root and the remaining quartic is easily solvable as a quadratic in x + 1/x to give x as
Extractions: Tour Become a Member ... Customer Support Question / Keyword(s): Advanced Search Start D Daily Telegraph (London, England) April 03, 2003 ... Obituary of Donald Coxeter; Geometer who inspired Buckminster Fuller, Escher and Nobel prizewinners and wrote an opera aged 12.(News)(Obituary) Daily Telegraph (London, England); April 03, 2003;
Donald Coxeter Dear mathematical colleagues of donald coxeter, It is with greatsadness that I have to tell you that on March 31, 2003. donald http://www.math.yorku.ca/coxeter.htm
Extractions: Dear mathematical colleagues of Donald Coxeter, It is with great sadness that I have to tell you that on March 31, 2003. Donald passed away peacefully at is home in Toronto at the age of 96. His daughter Susan was at his side as she has been since the death of his beloved wife Rien. Respecting Donald's wishes, there will be no funeral or memorial service, but cremation with only son and daughter present. Family requests not to send any flowers but instead to reflect upon Donald's long and productive life. Rather than dwell in sadness, his death should be a catalyst for people to remember the wonderful things in life and enjoy the life the way he would have wanted it. Susan would like to share with you a recent photo of Donald with his youngest great-grandchild. The bumper sticker encourages us to celebrate Donald's life. I lost a mentor, we lost a colleague, the world lost a mathematician.
Coxeter donald coxeter is always known as donald which comes from his thirdname Macdonald. This needs a little explanation. He was first http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/Cxtr.htm
Extractions: Previous (Alphabetically) Next Welcome page Donald Coxeter is always known as Donald which comes from his third name MacDonald. This needs a little explanation. He was first given the name MacDonald Scott Coxeter, but a godparent suggested that his father's name should be added, so Harold was added at the front. Another relative noted that H M S Coxeter made him sound like a ship. A permutation of the names resulted in Harold Scott MacDonald Coxeter. Donald was educated at the University of Cambridge, receiving his B.A. in 1929. He continued to study for a doctorate at Cambridge under H F Baker , and this was awarded in 1931. He then became a Fellow continuing his researches at Cambridge. During this period he spent two years as a research visitor at Princeton University working under Veblen . He was Rockefeller Fellow during 1932-33 and Procter Fellow during 1934-35. In 1936 Coxeter took up an appointment at the University of Toronto. He has remained on the faculty at Toronto ever since and recently a celebration was held in the department to celebrate his 60 years at the University of Toronto.
C Index Roger (313*) Coulomb, Charles de (95*) Courant, Richard (116*) Cournot, Antoine(515) Couturat, Louis (130) Cox, Gertrude (295*) coxeter, donald (722*) Craig http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/C.htm
Donald Coxeter -- Mathematician Biographical and career data from the Great Canadian Scientists series. Home Detailed Information. Name donald coxeter Mathematician http://www.science-search.org/index/Math/Geometry/Polytopes/26539.htm
H. S. M. Coxeter HSM coxeter. HSM ( donald ) coxeter (February 9, 1907 March 31, 2003)is generally regarded as the greatest geometer of the 20th century. http://www.fact-index.com/h/h_/h__s__m__coxeter.html
Extractions: Main Page See live article Alphabetical index H.S.M. ("Donald") Coxeter February 9 March 31 ) is generally regarded as the greatest geometer of the 20th century He worked for 60 years at the University of Toronto and published twelve books. He was most noted for his work on regular polytopes and hyperdimensional geometries. He met Maurits Escher and his work on geometric figures helped inspire some of Escher's works. He also inspired some of the innovations of Buckminster Fuller He studied the philosophy of mathematics under Ludwig Wittgenstein at Trinity College, Cambridge . He remained at Cambridge following his doctorate, then did postgraduate studies at Princeton University . In he moved to the University of Toronto, becoming a professor in . He was elected a Fellow of the Royal Society in The Real Projective Plane Introduction to Geometry Regular Polytopes Regular Complex Polytopes Non-Euclidean Geometry Geometry Revisited (with S. L. Greitzer, 1967) Projective Geometry (2d ed, 1974) The Beauty of Geometry: Twelve Essays The Fifty-Nine Icosahedra (with P. Du Val, H. T. Flather, J. F. Petrie)
Coxeter-James Prize HSM (donald) coxeter (Seventh President of the CMS 19651967). donald coxeter wasborn in Kensington (London), February 9, 1907. donald coxeter died in 2003. http://www.cms.math.ca/Prizes/info/cj.html
Extractions: Biographical Information: Donald Coxeter was born in Kensington (London), February 9, 1907. His parents were Lucy Gee (who painted portraits and landscapes) and Harold Samuel Coxeter (a manufacturer of surgical instruments and anaesthetics, with singing and sculpture as hobbies). He attended Trinity College, Cambridge, from 1926 until 1936, first as a scholar then as a fellow. He studied for his Ph.D. under H.F. Baker and then spent two separate years at Princeton, attending lectures by Weblen, Alexander, Lefschetz, Wedderburn, Eisenhart and Weyl. His first visit to Canada was in 1934, when Gilbert de B. Robinson urged Samuel Beatty to invite him from Princeton to Toronto as a colloquium speaker. Apparently Beatty was sufficiently impressed to send a telegraphic message in 1936 offering Coxeter an assistant professorship. That came just before his marriage to Rien Brouwer, a lovely young lady from The Hague. They travelled by ship to settle in Toronto. During the next fifty years, they crossed the Atlantic Ocean twenty-six times, the first three by ship. Those trips included visiting professorships at Amsterdam, Edinburgh, East Anglia, Canberra, Sussex, Utrecht and Bologna. He was awarded honorary degrees by the universities of Alberta, Waterloo, Acadia, Trent, Toronto, Giessen (Germany), Carleton, McMaster and York. Other honors that he has received include Fellow of the Royal Society of Canada (1948), Fellow of the Royal Society (1950), honorary membership in several mathematical societies, Foreign Member of the American Academy of Arts and Sciences (1990) and, in 1997, Companion of the Order of Canada.
Camel donald coxeter (1907 2003). It is with deep regret that I announcethat donald coxeter passed away Monday evening March 31, 2003. http://www.cms.math.ca/bulletins/2003/Coxeter.html
Extractions: Donald Coxeter (1907 - 2003) It is with deep regret that I announce that Donald Coxeter passed away Monday evening [March 31, 2003]. Donald joined the Department of Mathematics at the University of Toronto in 1936 and he spent the next 67 years actively engaged at the University. He was the soul and spirit and the most active member of the geometry seminar. Donald had been described by many as the greatest living geometer. Undoubtedly the world's best known geometer, Professor Coxeter has made contributions of fundamental importance to the Theory of Polytopes, Non-Euclidean geometry, Discrete Groups, and Combinatorial Theory. He is best known for his introduction of what are now referred to as Coxeter groups. His name is attached to a number of mathematical concepts including the Coxeter diagram, Coxeter complex, Coxeter element, Coxeter graph, Coxeter number, and Coxeter system. Donald was a most prolific writer. He had over 200 publications including several books. His work was influential not only in geometry but also in many other branches of mathematics. Donald cherished the connection to music and arts. He was intimately involved in Escher's work. Donald was widely recognized and honoured. He was a Fellow of the Royal Society of Canada (1947), Fellow of the Royal Society, London (1950), and Companion of the Order of Canada (1997). He holds a number of honorary degrees.
The Bukowski Agency - King Of Infinite Space KING OF INFINITE SPACE THE STORY OF donald coxeter, THE MAN WHO SAVEDGEOMETRY by Siobhan Roberts. King of Infinite Space combines http://www.thebukowskiagency.com/KingOfInfiniteSpace.htm
Extractions: Columbia University physicist Brian Greene, New York Times best-selling author of The Elegant Universe , declares that geometry is a language crucial to explaining and uncovering the universe in which we live; there is perhaps no better way to anticipate the scientific breakthroughs of the future, he says, than through the knowledge and evolution of geometry. In this sense, for the masses of readers who are eager for books that make science accessible, Coxeters biography opens a fascinating new window onto our universe. The story of Donald Coxeter leads to the discovery of how geometry makes a practical impact on our everyday life, and how the world would be different if classical geometry had become extinct.
Mathe-Board coxeter Montag abend gestorben ist. Hier eine kurze Mitteilung dazu It is withdeep regret that I announce that donald coxeter passed away Monday evening. http://www.emath.de/Mathe-Board/messages/4/1544.html?1049368347
60th Royal American Regiment Of Foot John Broderick, James Gorell, James Mcdonald, George Mckay, Francis Schloffer,Henry coxeter, donald Mcdonald, James Dunfter, Robert McPherfon, John Monins http://www.geocities.com/RodeoDrive/Mall/3591/list2.html
His Vision Shaped New Dimensions - Smh.com.au April 11 2003. donald coxeter, Geometer 19072003. Harold Scott Macdonald coxeter,known as donald, was born into a Quaker family at Kensington, west London. http://www.smh.com.au/articles/2003/04/10/1049567805776.html
Extractions: Donald Coxeter, Geometer 1907-2003 Donald Coxeter, who has died aged 96, made fundamental contributions to the study of multidimensional geometric shapes and was regarded as the greatest classical geometer of his generation. Coxeter published in the geometrical field for 70 years, worked professionally at the University of Toronto for 60 years and wrote 12 books and more than 200 articles. He was best known for his work in hyperdimensional geometries and regular polytopes - complicated geometric shapes of any number of dimensions that cannot be constructed in the real world but can be described mathematically and sometimes drawn. In 1926, at 19, he discovered a new regular polyhedron with six hexagonal faces at each vertex. He went on to study the mathematics of kaleidoscopes and, by 1933, had enumerated the n-dimensional kaleidoscopes (kaleidoscopes operating up to any number of dimensions). His complex algebraic equations expressing how many images of an object may be seen in a kaleidoscope are now known as Coxeter groups. Coxeter's work on icosahedral symmetries played an important role in the discovery by scientists at Rice University, Texas, of the Carbon 60 molecule, for which they won the 1996 Nobel Prize in Chemistry. Carbon 60 is now being tested as a superconductor for use in everything from chemotherapy and telecommunications to AIDS research.
H. S. M. Coxeter Definition Meaning Information Explanation com . HSM ( donald ) coxeter (February 9, 1907 - March 31, 2003) isgenerally regarded as the greatest geometer of the 20th century. http://www.free-definition.com/H.-S.-M.-Coxeter.html
Extractions: Google News about your search term H.S.M. ("Donald") Coxeter February 9 March 31 ) is generally regarded as the greatest geometer of the 20th century He worked for 60 years at the University of Toronto and published twelve books. He was most noted for his work on regular polytope s and hyperdimensional geometries. He met Maurits Escher and his work on geometric figures helped inspire some of Escher's works. He also inspired some of the innovations of Buckminster Fuller He studied the philosophy of mathematics under Ludwig Wittgenstein at Trinity College, Cambridge . He remained at Cambridge following his doctorate, then did postgraduate studies at Princeton University . In he moved to the University of Toronto, becoming a professor in . He was elected a Fellow of the Royal Society in The Real Projective Plane Introduction to Geometry Regular Polytopes Regular Complex Polytopes Non-Euclidean Geometry Geometry Revisited (with S. L. Greitzer, 1967) Projective Geometry (2d ed, 1974)
1980 Edge. Centre row Luc Teirlinck, Brian Wilson, Mario Marchi, EricLander, Rien coxeter, donald coxeter, Hanfried Lenz. Front row http://www.maths.sussex.ac.uk/Staff/JWPH/PERSONAL/photos80.html
Extractions: From the 1980 Isle of Thorns Conference on Finite Geometries and Designs Back row : Ron Graham, Arnold Neumaier, Arjeh Cohen, Richard Weiss, David Glynn, Thomas Beth, JWPH, Jan Saxl, Ernie Shult, Mark Ronan, Norman Biggs, Mike Ganley, W.L. Edge Centre row : Luc Teirlinck, Brian Wilson, Mario Marchi, Eric Lander, Rien Coxeter, Donald Coxeter, Hanfried Lenz Front row : Jef Thas, Frank De Clerck, Stan Payne, Udo Ott, Marshall Hall, Marlene Willems, Wilhelm Haemers, Dina Ghinelli Seated : Kourosh Sadeh [ Back to JWPH's home page. ]
Extractions: Amnesty Internat. ... By subject H.S.M. ("Donald") Coxeter February 9 March 31 ) is generally regarded as the greatest geometer of the 20th century He worked for 60 years at the University of Toronto and published twelve books. He was most noted for his work on regular polytope s and hyperdimensional geometries. He met Maurits Escher and his work on geometric figures helped inspire some of Escher's works. He also inspired some of the innovations of Buckminster Fuller He studied the philosophy of mathematics under Ludwig Wittgenstein at Trinity College, Cambridge . He remained at Cambridge following his doctorate, then did postgraduate studies at Princeton University . In he moved to the University of Toronto, becoming a professor in . He was elected a Fellow of the Royal Society in The Real Projective Plane Introduction to Geometry Regular Polytopes Regular Complex Polytopes Non-Euclidean Geometry Geometry Revisited (with S. L. Greitzer, 1967)
