61. Whatcom Online Math Center List of unsolved problems in math, physics, other areas Bruno Kevius mathproblems, Problem Solving, and Competitions Links Catalan´s Conjecture http://math.whatcom.ctc.edu/content/Links.phtml?cat=60&c=0

62. Mudd Math Fun Facts: Riemann Hypothesis and is one of the great unsolved problems of mathematics, dating back to 1859 . The math Behind the Fact Many other problems in number theory, http://www.math.hmc.edu/funfacts/ffiles/30002.5.shtml

hosted by the Harvey Mudd College Math Department Francis Su Any Easy Medium Advanced Search Tips List All Fun Facts Fun Facts Home About Math Fun Facts ... Other Fun Facts Features 1819317888.26699 Fun Facts viewed since 20 July 1999. Francis Edward Su From the Fun Fact files, here is a Fun Fact at the Advanced level: Riemann Hypothesis If you know about complex numbers, you will be able to appreciate one of the great unsolved problems of our time. The Riemann zeta function is defined by Zeta(z) = SUM k=1 to infinity (1/k z This is the harmonic series for z=1 and Sums of Reciprocal Powers if you set z equal to other positive integers. The function can be extended to the entire complex plane (with some poles) by a process called "analytic continuation", although what that is won't concern us here. It is of great interest to find the zeroes of this function. The function is trivially zero at the negative even integers, but where are all the other zeroes? To date, the only other zeroes known all lie on the line in the complex plane with real part equal to 1/2. This has been checked for several hundred million zeroes! No one knows, however, if

63. FUN: Math's Unsolved Mysteries -- 291 (5506): 951 -- Science swimming in unsolved problemsmany of which can be understood by nonmathematicians . Beware, though; these problems can be dangerously addictive. http://www.sciencemag.org/cgi/content/summary/291/5506/951c

document.write(''); Previous Article Table of Contents Next ... Article Science , Vol 291, Issue 5506, 951 , 9 February 2001 Download to Citation Manager Alert me when: new articles cite this article Search for similar articles in: Science Online Search Medline for articles by: Request permission to use this article This article appears in the following Subject Collections: Fun Computers/Mathematics NetWatch ADVERTISEMENT [DOI: 10.1126/science.291.5506.951c] NetWatch Despite the solution of Fermat's Last Theorem in 1994, mathematicians are still swimming in unsolved problemsmany of which can be understood by nonmathematicians. Steven Finch of MathSoft Inc. has collected a goodly number of them and linked to others on one site. It's an invaluable resource for those who wish to tilt at mathematical windmills. For instance, there's the 3 x + 1 conjecture. Take a number; if it's even, halve it, but if it's odd, multiply it by 3 and add one. The conjecture states that, no matter what number you start with, you'll end up with the number 1 eventually. Nobody has proven thisnor have they proven elementary conjectures about huddling armadillos, crossing moats with wooden planks, and escaping from a forest in the least amount of time. Beware, though; these problems can be dangerously addictive. www.mathsoft.com/asolve

64. ENC Online: Curriculum Resources: Browse: Mathematics> History> Famous Problems The book includes math history, famous mathematicians, classic puzzles and Prime obsession Bernhard Riemann and the greatest unsolved problems in http://www.enc.org/resources/browse/0,,0-100-295-4493_1_0-0-0,00.shtm

Skip Navigation You Are Here ENC Home Curriculum Resources Browse Search the Site More Options Don't lose access to ENC's web site! Beginning in August, goENC.com will showcase the best of ENC Online combined with useful new tools to save you time. Take action todaypurchase a school subscription through goENC.com Classroom Calendar Digital Dozen ENC Focus ... Ask ENC Explore online lesson plans, student activities, and teacher learning tools. Search Browse Frequently Asked Questions Resource of the Day ... About Curriculum Resources Read articles about inquiry, equity, and other key topics for educators and parents. Create your learning plan, read the standards, and find tips for getting grants. 53 Records Sorted by Date Use these menus to limit browse results using specific criteria Grade: All Grade Levels Pre-K to 2 3 to 5 6 to 8 9 to 12 Post Sec. Media Type: All Media Types Only Web Sites Excluding Web Sites Cost: All Costs Low Cost (Less than $50) Free Return to Subject Tree Modify using Advanced Search Convergence, a magazine of the Mathematical Association of America ENC Digital Dozen Site Date: Grade(s): 9 - Post Sec.

65. SAM - Matrix Polynomials In Queueing Theory Solved And Unsolved At the end of the talk, a number of unsolved problems are described. top.Wichtiger Hinweis Diese Website wird in älteren Versionen von Netscape ohne http://www.math.ethz.ch/research/groups/sam/news/kolloquia/abs_grassmann

Find Us About Us People at SAM Contact ... Help Search Research Reports Projects ETH Zurich ... Open Positions Matrix polynomials in queueing theory: solved and unsolved problems W. Grassmann, University of Saskatchewan, Canada Monday, June 21 at 16.30 in HG D1.2 We are given a block-tridiagonal infinite dimensional infinitesimal matrix A with the property that all blocks on the super diagonal are equal, and so are all blocks on the subdiagonal. Also, except for the first block, all blocks on the diagonal are the same. The matrix A is a generator matrix, that is, all row-sums of A are zero, and all off-diagonal elements are non-negative. The problem is to find a row vector P satisfying PA=0, with the additional condition that the sum of all elements of P must be 1. The existence or non-existence of such a vector can be verified without major difficulty. Two types of methods for the solution of this problem have been suggested in literature: matrix analytic methods and methods based on the eigenvalues of certain matrix polynomials. Both methods will be discussed, and new aspects of these methods will be introduced. Of particular interest in this regard are Sturm sequences, which are key a solution approach recently suggested by the speaker. At the end of the talk, a number of unsolved problems are described. Wichtiger Hinweis: folgender Seite Important Note: More information Imprint February 10, 2005

66. Math Trek: Dangerous Problems, Science News Online, June 29, 2002 In the case of tables bounded by straight lines, one unsolved problem concernstriangular Bubbles and math olympiads. Science News Online (June 16). http://www.sciencenews.org/articles/20020629/mathtrek.asp

Science News Books. Subscribe to Science News ... Science News for Kids Math Trek Dangerous Problems Food for Thought Slugging It Out with Caffeine Science Safari Remember Typewriters? TimeLine 70 Years Ago in Science News Science News e-LETTER. ... Week of June 29, 2002; Vol. 161, No. 26 Dangerous Problems Ivars Peterson Some mathematical problems are easy to describe but turn out to be notoriously difficult to solve. Nonetheless, despite their reputed difficulty and repeated warnings from those who had failed to solve them in the past, these infamous problems continue to lure mathematicians into hours, days, and even years of futile labor. In a presentation this week on "mathematical problems between order and chaos," Jeffrey C. Lagarias of AT&T Labs–Research highlighted three such notorious unsolved problems. His was a cautionary tale, aimed at an audience that included 12 high-school students who had already shown their problem-solving proficiency by topping the 2002 U.S.A. Mathematical Olympiad (USAMO). Susceptible himself to the lure of these tantalizing conundrums, Lagarias admitted that he could have subtitled his talk "some problems I wish I could solve." In recent years, Lagarias has made important research contributions in a variety of mathematical fields, including work on the randomness of pi's digits, number patterns related to circles nested within circles, and the problem of distinguishing knots from unknots.

67. Math Trek: Dangerous Problems, Science News Online, July 13, 2002 In the case of tables bounded by straight lines, one unsolved problem concerns He is coauthor of the children s books math Trek Adventures in the http://www.sciencenews.org/articles/20020713/mathtrek.asp

Science News Books. Subscribe to Science News ... Science News for Kids Math Trek Dangerous Problems Food for Thought Bugged by Foreign Cuisine Science Safari Building America TimeLine 70 Years Ago in Science News Science News e-LETTER. ... Week of July 13, 2002; Vol. 162, No. 2 , p. 0 Dangerous Problems Ivars Peterson Some mathematical problems are easy to describe but turn out to be notoriously difficult to solve. Nonetheless, despite their reputed difficulty and repeated warnings from those who had failed to solve them in the past, these infamous problems continue to lure mathematicians into hours, days, and even years of futile labor. In a presentation this week on "mathematical problems between order and chaos," Jeffrey C. Lagarias of AT&T Labs–Research highlighted three such notorious unsolved problems. His was a cautionary tale, aimed at an audience that included 12 high-school students who had already shown their problem-solving proficiency by topping the 2002 U.S.A. Mathematical Olympiad (USAMO). Susceptible himself to the lure of these tantalizing conundrums, Lagarias admitted that he could have subtitled his talk "some problems I wish I could solve." In recent years, Lagarias has made important research contributions in a variety of mathematical fields, including work on the randomness of pi's digits, number patterns related to circles nested within circles, and the problem of distinguishing knots from unknots.

68. Math On The Web: Mathematics By Topics math FAQ Sections on Numbers; The Uselessness of Pi and its irrational friends 23 Steven Finch s Collection of unsolved problems and links to such http://www.ams.org/mathweb/mi-mathbytopic.html

Mathematics on the Web Materials Organized by Mathematical Topics AMS Website Math on the Web Mathematics by Topic Mathematics by Topic lists some topic keywords in the Table of Contents. In each section are links to electronic journals, preprints, Web sites and pages, databases and other pertinent material in the corresponding field. There is also a page of Materials Organized by Mathematical Subject Classification Table of Topics Actuarial Mathematics Algebra Calculus Resources Cellular Automata ... Complex Variables See also Several Complex Variables Complexity and Complex Systems Computational Fluid Dynamics Computational Science ... Cryptology Differential Equations See Ordinary Differential Equations or Partial Differential Equations Dynamical Systems Fermat's Last Theorem Finite Elements See Numerical Analysis Fractals General Exposition General Relativity ... Wavelets Actuarial mathematics Department of Actuarial Mathematics and Statistics , Heriot-Watt University (UK) Balducci's Actuarial Home Page (Calgary, CA) South African Actuarial Site Berry List of Actuarial Resources City University's list of links (London, UK) International Actuarial Association (UK); its

69. Narkiewicz: Some Unsolved Problems Soc. math. France, Memoire 25, 1971, P. 159 a l6h SOME unsolved problems ^y, W.NARKIEWICZ In this paper, which is a slightly extended version of my talk at http://www.numdam.org/numdam-bin/item?id=MSMF_1971__25__159_0

70. [math-ph/9904003] The 1999 Heineman Prize Address- Integrable Models In Statisti mathph/9904003. From Barry McCoy view email Date (v1) Sat, Integrablemodels in statistical mechanics The hidden field with unsolved problems http://arxiv.org/abs/math-ph/9904003

Mathematical Physics, abstract math-ph/9904003 From: Barry McCoy [ view email ] Date ( ): Sat, 3 Apr 1999 19:21:11 GMT (15kb) Date (revised ): Wed, 28 Apr 1999 17:07:52 GMT (16kb) Date (revised v3): Thu, 29 Apr 1999 00:01:53 GMT (16kb) The 1999 Heineman Prize Address- Integrable models in statistical mechanics: The hidden field with unsolved problems Authors: Barry M. McCoy (State University of New York at Stony Brook) Categories: math-ph cond-mat hep-th math.MP nlin.SI solv-int Comments: Text of the 1999 Heineman Prize address given March 24 at the Centenial Meeting of the American Physical Society in Atlanta 20 pages in latex, references added and typos corrected Report-no: ITPSB-99-5 Subj-class: Mathematical Physics; Exactly Solvable and Integrable Systems In the past 30 years there have been extensive discoveries in the theory of integrable statistical mechanical models including the discovery of non-linear differential equations for Ising model correlation functions, the theory of random impurities, level crossing transitions in the chiral Potts model and the use of Rogers-Ramanujan identities to generalize our concepts of Bose/Fermi statistics. Each of these advances has led to the further discovery of major unsolved problems of great mathematical and physical interest. I will here discuss the mathematical advances, the physical insights and extraordinary lack of visibility of this field of physics. Full-text: PostScript PDF , or Other formats References and citations for this submission:

71. Sci.math FAQ: Unsolved Problems Subject sci.math FAQ unsolved problems. This article was archived around 17Feb 2000 225551 GMT. All FAQs in Directory scimath-faq http://www.cs.uu.nl/wais/html/na-dir/sci-math-faq/unsolved.html

Note from archiver cs.uu.nl: This page is part of a big collection of Usenet postings, archived here for your convenience. For matters concerning the content of this page , please contact its author(s); use the source , if all else fails. For matters concerning the archive as a whole, please refer to the archive description or contact the archiver. Subject: sci.math FAQ: Unsolved Problems This article was archived around: 17 Feb 2000 22:55:51 GMT All FAQs in Directory: sci-math-faq All FAQs posted in: sci.math Source: Usenet Version Archive-name: sci-math-faq/unsolved Last-modified: February 20, 1998 Version: 7.5 http://www.cs.unb.ca/~alopez-o Assistant Professor Faculty of Computer Science University of New Brunswick

72. Flooble :: Perplexus :: Puzzle Categories Just math (193 problems) New Comments (28) unsolved problems Top Ratedproblems This month s top Most Commented On. Chatterbox http://www.flooble.com/perplexus/tree.php

All about flooble fun stuff Get a free chatterbox ... Avatars Notice: this site has moved to perplexus.info That's right - we now have our own new domain. These pages will eventually stop working, so please update your bookmarks! To access this page on the new site, go here: perplexus.info :: puzzle categories (Your old login and password will still be valid on the new site) Home Categories Below is the list of categories of puzzles and problems available on flooble :: perplexus. If you think we are missing a category, feel free to let us know. Or just submit a problem, and if it fits none of the categories shown, we will be forced to add a new one just for you! Finally, if you're not sure which category to go to, just jump to a random problem Problem category tree Home (Top Level) Logic (190 problems) Liars and Knights (54 problems) Weights and Scales (48 problems) Probability (116 problems) Shapes (109 problems) Geometry (130 problems) General (188 problems, 1 new Tricks (32 problems) Word Problems (97 problems

73. AoPS Math Forum :: View Forum - Inequalities Unsolved Problems English version Inequalities unsolved problems, Change the language No newposts, Came up in another problem China math Olympiad 96, Magnara http://artofproblemsolving.com/Forum/forum-51.html

Round 1 of the USA Mathematical Talent Search is now available. The postmark deadline for the first round is October 3 Font Size: The time now is Fri Sep 23, 2005 2:21 pm English version Inequalities Unsolved Problems Change the language View posts since last visit ... Inequalities Unsolved Problems Moderators: Arne blahblahblah harazi Megus ... pbornsztein Page of [1303 Topics] Goto page Next Topics Author Replies Views Last Post Stickies Problem Searching and Naming! Goto page harazi Fri Aug 26, 2005 9:59 pm Valentin Vornicu Topics Ineq 1 Proposed by Walther Janous, Today, at 11:34 am Diarmuid Geometrical inequality Classic levi Today, at 10:02 am levi i can't prove it FishDragon Today, at 7:37 am FishDragon Schweitzer inequality and Kantorovich inequality. FishDragon Today, at 7:28 am FishDragon Indian IMOTC 29 Rushil Today, at 7:04 am Arne Indian IMOTC 58 Rushil Today, at 6:53 am lotharek Indian IMOTC 43 Rushil Today, at 3:43 am Rushil Indian IMOTC 9 Rushil Today, at 3:38 am nttu compare min(max) and max(min) supista Yesterday, at 11:35 pm Singular nice my friend ALGEBRA Yesterday, at 5:25 am

74. Welcome To Mathsoft This evolving collection of unsolved mathematics problems is not systematic orcomplete; it is only an eclectic gathering of questions and partial answers http://www.mathsoft.com/mathsoft_resources/unsolved_problems/

Company Press Room Partners Events ... Math Resources Unsolved Problems Welcome! This evolving collection of unsolved mathematics problems is not systematic or complete; it is only an eclectic gathering of questions and partial answers which have come to my attention over the years. Unsolved Problems Links Sleeping Habits of Armadillos On a Generalized Fermat-Wiles Equation Zero Divisor Structure in Real Algebras ... Privacy

75. Clay Mathematics Institute A vast range of problems are known to be NPcomplete. The P=NP? problem asks whether that it encompasses one of the great unsolved problems of our age. http://www.claymath.org/Popular_Lectures/Minesweeper/

Clay Mathematics Institute Dedicated to increasing and disseminating mathematical knowledge HOME ABOUT CMI PROGRAMS AWARDS ... PUBLICATIONS Ian Stewart on Minesweeper It's not often you can win a million dollars by analysing a computer game, but by a curious conjunction of fate, there's a chance that you might. However, you'll only pick up the loot if all the experts are wrong and a problem that they think is extraordinarily hard turns out to be easy. So don't order the Corvette yet. The prize is one of seven now on offer from the newly founded Clay Mathematics Institute in Cambridge MA, set up by businessman Landon T. Clay to promote the growth and spread of mathematical knowledge, each bearing a million-buck price-tag. The computer game is Minesweeper, which is included in Microsoft's Windows operating system, and involves locating hidden mines on a grid by making guesses about where they are located and using clues provided by the computer. And the problem is one of the most notorious open questions in mathematics, which rejoices in the name 'P=NP?'. The connection between the game and the prize problem was explained by Richard Kaye of the University of Birmingham, England ('Minesweeper is NP-complete', Mathematical Intelligencer volume 22 number 4, 2000, pages 9-15). And before anyone gets too excited, you won't win the prize by winning the game. To win the prize, you will have to find a really slick method to answer questions about Minesweeper when it's played on gigantic grids and all the evidence suggests that there isn't a slick method. In fact, if you can prove that there isn't one, you can win the prize that way too.

76. Prime Numbers Some unsolved problems. The Twin Primes Conjecture that there are infinitely manypairs of primes only 2 apart. Goldbach s Conjecture (made in a letter by C http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Prime_numbers.html

Prime numbers Number theory index History Topics Index Version for printing Prime numbers and their properties were first studied extensively by the ancient Greek mathematicians. The mathematicians of Pythagoras 's school (500 BC to 300 BC) were interested in numbers for their mystical and numerological properties. They understood the idea of primality and were interested in perfect and amicable numbers. A perfect number is one whose proper divisors sum to the number itself. e.g. The number 6 has proper divisors 1, 2 and 3 and 1 + 2 + 3 = 6, 28 has divisors 1, 2, 4, 7 and 14 and 1 + 2 + 4 + 7 + 14 = 28. A pair of amicable numbers is a pair like 220 and 284 such that the proper divisors of one number sum to the other and vice versa. You can see more about these numbers in the History topics article Perfect numbers By the time Euclid 's Elements appeared in about 300 BC, several important results about primes had been proved. In Book IX of the Elements Euclid proves that there are infinitely many prime numbers. This is one of the first proofs known which uses the method of contradiction to establish a result. Euclid also gives a proof of the Fundamental Theorem of Arithmetic: Every integer can be written as a product of primes in an essentially unique way.

77. Mathematical Games It is still an unsolved problem how many distinct polyominoes of each order thereare. math Forum (Magic squares); Eric Weisstein (Magic squares) http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Mathematical_games.html

Mathematical games and recreations Alphabetical list of History Topics History Topics Index Version for printing Mathematical puzzles vary from the simple to deep problems which are still unsolved. The whole history of mathematics is interwoven with mathematical games which have led to the study of many areas of mathematics. Number games, geometrical puzzles, network problems and combinatorial problems are among the best known types of puzzles. The Rhind papyrus shows that early Egyptian mathematics was largely based on puzzle type problems. For example the papyrus, written in around 1850 BC, contains a rather familiar type of puzzle. You can see a picture of the Rhind papyrus Seven houses contain seven cats. Each cat kills seven mice. Each mouse had eaten seven ears of grain. Each ear of grain would have produced seven hekats of wheat. What is the total of all of these? Similar problems appear in Fibonacci 's Liber Abaci written in 1202 and the familiar St Ives Riddle of the 18 th Century based on the same idea (and on the number 7). Greek mathematics produced many classic puzzles. Perhaps the most famous are from

78. Links To Open Problems In Mathematics, Physics And Financial Econometrics Lists of unsolved problems Long standing open problems and prizes P versus NP Important unsolved problems in physics Quantum gravity http://www.geocities.com/ednitou/

RESEARCH OPEN QUESTIONS September 21st, 2005 GENERAL Lists of unsolved problems Science magazine 125 big questions MATHEMATICS (PHYSICIST'S PERSPECTIVE) Sir Michael Atiyah's Fields Lecture (.ps) Areas long to learn: quantum groups motivic cohomology , local and micro local analysis of large finite groups Exotic areas: infinite Banach spaces , large and inaccessible cardinals Some recent links between mathematics and physics Number theory and physics Conjectured links between the Riemann zeta function and chaotic quantum-mechanical systems Deep and relatively recent ideas in mathematics and physics Standard model and mathematics: Gauge field or connection Dirac operators or fundamental classes in K-theory ( Atiyah-Singer index theorem String theory and mathematics: Mirror symmetry Conformal field theory Mathematics behind supersymmetry Mathematics of M-Theory Chern-Simons theory Unified theory: Langlands Program Theory of "motives" Lists of unsolved problems Long standing open problems PRICE P versus NP The Hodge Conjecture The Poincaré Conjecture The Riemann Hypothesis Yang-Mills Existence and Mass Gap Navier-Stokes Existence and Smoothness The Birch and Swinnerton-Dyer Conjecture Mathworld list Mathematical challenges of the 21st century including moduli spaces and borderland physics Goldbach conjecture Normality of pi digits in an integer base Unsolved problems and difficult to understand areas PRICES Fields Medal and Rolf Nevanlinna Prize Abel Prize PHYSICS Important unsolved problems in physics Quantum gravity Explaining high-Tc superconductors

79. Unsolved Problems In Number Theory (Guy)-Springer Number Theory Book Mathematics is kept alive by the appearance of new unsolved problems, problemsposed from within mathematics itself, and also from the increasing number of http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-10048-22-34511272-0,00

Please enable Javascript in your browser to browse this website. Select your subdiscipline Algebra Analysis Applications Mathematical Biology Mathematical Physics Probability Theory Quantitative Finance Home Mathematics Select a discipline Biomedical Sciences Chemistry Computer Science Economics Education Engineering Environmental Sciences Geography Geosciences Humanities Law Life Sciences Linguistics Materials Mathematics Medicine Philosophy Popular Science Psychology Public Health Social Sciences Statistics preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900180-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900170-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900190-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900200-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900369-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900344-0,00.gif'); Please select Africa Asia Australia / Oceania Europe Germany North America South America Switzerland United Kingdom All Author/Editor Title ISBN/ISSN Series preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900050-0,00.gif');

80. Unsolved Problems In Intuitive Mathematics-Springer BookSeries unsolved problems in Geometry Croft, HT, Falconer, KJ (et al.), Vol. 2, 1994 More, 42,95 € Cart unsolved problems in Number Theory Guy, RK, Vol. http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-10048-69-1186471-0,00.

Please enable Javascript in your browser to browse this website. Select your subdiscipline Algebra Analysis Applications Mathematical Biology Mathematical Physics Probability Theory Quantitative Finance Home Mathematics Select a discipline Biomedical Sciences Chemistry Computer Science Economics Education Engineering Environmental Sciences Geography Geosciences Humanities Law Life Sciences Linguistics Materials Mathematics Medicine Philosophy Popular Science Psychology Public Health Social Sciences Statistics preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900180-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900170-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900190-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900200-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900369-0,00.gif'); preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900344-0,00.gif'); Please select Africa Asia Australia / Oceania Europe Germany North America South America Switzerland United Kingdom All Author/Editor Title ISBN/ISSN Series preloadImage('/sgw/cda/pageitems/designobject/cda_displaydesignobject/0,11978,5-0-17-900050-0,00.gif');

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