By Hans-Dietrich Gronau, Hanns-Heinrich Langmann, Dierk Schleicher
In July 2009 Germany hosted the fiftieth overseas Mathematical Olympiad (IMO). For the first actual time the variety of engaging international locations passed a hundred, with 104 international locations from all continents. Celebrating the fiftieth anniversary of the IMO offers an awesome chance to appear again during the last 5 a long time and to check its improvement to turn into a world occasion. This booklet is a file concerning the fiftieth IMO in addition to the IMO background. loads of facts approximately the entire 50 IMOs are incorporated. We record the main winning contestants, the result of the 50 Olympiads and the 112 nations that experience ever taken half. it's remarkable to determine that a number of the world’s best study mathematicians have been one of the so much winning IMO members of their formative years. Six of them gave displays at a distinct party: Bollobás, Gowers, Lovász, Smirnov, Tao and Yoccoz. This booklet is geared toward scholars within the IMO age workforce and all those that have curiosity during this world wide major pageant for high school students.
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They should be sent by mail (not by e-mail, for security reasons). 2. The proposals should, as far as possible, cover various fields of pre-university mathematics and be of varying degrees of difficulty. They should be new and may not have been suggested for or used in any other Mathematics competition. 3. The proposals must only be written in English, French, German, Russian or Spanish. The proposals and solutions should be accompanied by their English versions. 5. 1. The contest element of the IMO 2009 (the "Contest") will take place in Bremen on July 15 and 16, 2009, under the direction of the Chief Invigilator appointed by Bildung und Begabung.
However, they may exceptionally speak at the explicit request of the Chairman of the Jury. Deputy Leaders may attend, as observers, meetings of the Jury held after the Contest. 2. Only Leaders may vote in the decisions of the Jury and each Leader will have one vote. A motion shall be carried by a simple majority of those voting. In the event of a tie, the Chairman will have a casting vote. 3. The Jury may appoint sub-committees to consider specific matters. 4. The meetings of the Jury will be conducted principally in English.
In particular, books, papers, tables, calculators, protractors, computers and communication devices will not be allowed into the examination room. 5. The Jury, Observers and any others who have sight of the problems and solutions before the examinations shall do their utmost to ensure that no Contestant has information, direct or indirect, about any proposed problem. They must also ensure that all Contest problems and solutions are kept strictly confidential until after the entire Contest has finished.