unsolved international problems

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• Unsolved problems in linguistics — This article discusses currently unsolved problems in linguistics.Some of the issues below are commonly recognized as problems per se , i.e., it is general agreement that the solution is unknown. Others may be described as controversies, i.e.,… …   Wikipedia

• International recognition of Kosovo — Kosovo This article is part of the series: Politics and government of Kosovo Political status of Kosovo Declaration of independence …   Wikipedia

• List of unsolved problems in economics — This is a list of some of the major unsolved problems, puzzles, or questions in economics. Some of these are theoretical in origin and some of them concern the inability of standard economic theory to explain an empirical observation. Contents 1… …   Wikipedia

• Hilbert's problems — are a list of twenty three problems in mathematics put forth by German mathematician David Hilbert at the Paris conference of the International Congress of Mathematicians in 1900. The problems were all unsolved at the time, and several of them… …   Wikipedia

• Smale's problems — refers to a list of eighteen unsolved problems in mathematics, proposed by Steve Smale in 2000. [Steve Smale, [http://www6.cityu.edu.hk/ma/people/smale/pap104.pdf Mathematical problems for the next century] . Mathematics: frontiers and… …   Wikipedia

• Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …   Universalium

• Austria — Austrian, adj., n. /aw stree euh/, n. a republic in central Europe. 8,054,078; 32,381 sq. mi. (83,865 sq. km). Cap.: Vienna. German, Österreich. * * * Austria Introduction Austria Background: Once the center of power for the large Austro… …   Universalium

• Ottoman Empire — a former Turkish empire that was founded about 1300 by Osman and reached its greatest territorial extent under Suleiman in the 16th century; collapsed after World War I. Cap.: Constantinople. Also called Turkish Empire. * * * Former empire… …   Universalium

• George Dantzig — George Bernard Dantzig (Nov 8 1914 ndash; May 13 2005) was an American mathematician, and the Professor Emeritus of Transportation Sciences and Professor of Operations Research and of Computer Science at Stanford. George Dantzig is known as the… …   Wikipedia

• Collatz conjecture — Directed graph showing the orbits of small numbers under the Collatz map. The Collatz conjecture is equivalent to the statement that all paths eventually lead to 1 …   Wikipedia

• Hilbert , David — (1862–1943) German mathematician Hilbert studied at the university in his native city of Königsberg (now Kaliningrad in Russia) and at Heidelberg; he also spent brief periods in Paris and Leipzig. He took his PhD in 1885, the next year became… …   Scientists