Map Coloring, Polyhedra and the FourColor Problem

Map Coloring, Polyhedra and the FourColor Problem PDF Author: David W. Barnette
Publisher: American Mathematical Soc.
ISBN: 1470457172
Category : Mathematics
Languages : en
Pages : 168

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Map Coloring, Polyhedra and the FourColor Problem

Map Coloring, Polyhedra and the FourColor Problem PDF Author: David W. Barnette
Publisher: American Mathematical Soc.
ISBN: 1470457172
Category : Mathematics
Languages : en
Pages : 168

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Book Description


Map Coloring, Polyhedra, and the Four-color Problem

Map Coloring, Polyhedra, and the Four-color Problem PDF Author: David Barnette
Publisher: MAA Press
ISBN:
Category : Mathematics
Languages : en
Pages : 186

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Map Coloring, Polyhedra, and the Four-color Problem

Map Coloring, Polyhedra, and the Four-color Problem PDF Author: David Wilmot Barnette
Publisher:
ISBN: 9780883853009
Category :
Languages : en
Pages : 168

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The Four-color Problem

The Four-color Problem PDF Author: Øystein Ore
Publisher:
ISBN:
Category : Four-color problem
Languages : en
Pages : 288

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The Four-Color Theorem

The Four-Color Theorem PDF Author: Rudolf Fritsch
Publisher: Springer Science & Business Media
ISBN: 1461217202
Category : Mathematics
Languages : en
Pages : 269

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Book Description
This book discusses a famous problem that helped to define the field now known as topology: What is the minimum number of colors required to print a map so that no two adjoining countries have the same color? This problem remained unsolved until the 1950s, when it was finally cracked using a computer. This book discusses the history and mathematics of the problem, as well as the philosophical debate which ensued, regarding the validity of computer generated proofs.

Four Colors Suffice

Four Colors Suffice PDF Author: Robin Wilson
Publisher: Princeton University Press
ISBN: 0691237565
Category : Mathematics
Languages : en
Pages : 218

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Book Description
On October 23, 1852, Professor Augustus De Morgan wrote a letter to a colleague, unaware that he was launching one of the most famous mathematical conundrums in history--one that would confound thousands of puzzlers for more than a century. This is the amazing story of how the "map problem" was solved. The problem posed in the letter came from a former student: What is the least possible number of colors needed to fill in any map (real or invented) so that neighboring counties are always colored differently? This deceptively simple question was of minimal interest to cartographers, who saw little need to limit how many colors they used. But the problem set off a frenzy among professional mathematicians and amateur problem solvers, among them Lewis Carroll, an astronomer, a botanist, an obsessive golfer, the Bishop of London, a man who set his watch only once a year, a California traffic cop, and a bridegroom who spent his honeymoon coloring maps. In their pursuit of the solution, mathematicians painted maps on doughnuts and horseshoes and played with patterned soccer balls and the great rhombicuboctahedron. It would be more than one hundred years (and countless colored maps) later before the result was finally established. Even then, difficult questions remained, and the intricate solution--which involved no fewer than 1,200 hours of computer time--was greeted with as much dismay as enthusiasm. Providing a clear and elegant explanation of the problem and the proof, Robin Wilson tells how a seemingly innocuous question baffled great minds and stimulated exciting mathematics with far-flung applications. This is the entertaining story of those who failed to prove, and those who ultimately did prove, that four colors do indeed suffice to color any map. This new edition features many color illustrations. It also includes a new foreword by Ian Stewart on the importance of the map problem and how it was solved.

Map Color Theorem

Map Color Theorem PDF Author: G. Ringel
Publisher: Springer Science & Business Media
ISBN: 3642657591
Category : Mathematics
Languages : en
Pages : 202

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Book Description
In 1890 P. J. Heawood [35] published a formula which he called the Map Colour Theorem. But he forgot to prove it. Therefore the world of mathematicians called it the Heawood Conjecture. In 1968 the formula was proven and therefore again called the Map Color Theorem. (This book is written in California, thus in American English. ) Beautiful combinatorial methods were developed in order to prove the formula. The proof is divided into twelve cases. In 1966 there were three of them still unsolved. In the academic year 1967/68 J. W. T. Youngs on those three cases at Santa Cruz. Sur invited me to work with him prisingly our joint effort led to the solution of all three cases. It was a year of hard work but great pleasure. Working together was extremely profitable and enjoyable. In spite of the fact that we saw each other every day, Ted wrote a letter to me, which I present here in shortened form: Santa Cruz, March 1, 1968 Dear Gerhard: Last night while I was checking our results on Cases 2, 8 and 11, and thinking of the great pleasure we had in the afternoon with the extra ordinarily elegant new solution for Case 11, it seemed to me appropriate to pause for a few minutes and dictate a historical memorandum. We began working on Case 8 on 10 October 1967, and it was settled on Tuesday night, 14 November 1967.

Four Colors Suffice

Four Colors Suffice PDF Author: Robin J. Wilson
Publisher: Princeton University Press
ISBN: 9780691115337
Category : Mathematics
Languages : en
Pages : 284

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Book Description
On October 23, 1852, Professor Augustus De Morgan wrote a letter to a colleague, unaware that he was launching one of the most famous mathematical conundrums in history--one that would confound thousands of puzzlers for more than a century. This is the amazing story of how the "map problem" was solved. The problem posed in the letter came from a former student: What is the least possible number of colors needed to fill in any map (real or invented) so that neighboring counties are always colored differently? This deceptively simple question was of minimal interest to cartographers, who saw little need to limit how many colors they used. But the problem set off a frenzy among professional mathematicians and amateur problem solvers, among them Lewis Carroll, an astronomer, a botanist, an obsessive golfer, the Bishop of London, a man who set his watch only once a year, a California traffic cop, and a bridegroom who spent his honeymoon coloring maps. In their pursuit of the solution, mathematicians painted maps on doughnuts and horseshoes and played with patterned soccer balls and the great rhombicuboctahedron. It would be more than one hundred years (and countless colored maps) later before the result was finally established. Even then, difficult questions remained, and the intricate solution--which involved no fewer than 1,200 hours of computer time--was greeted with as much dismay as enthusiasm. Providing a clear and elegant explanation of the problem and the proof, Robin Wilson tells how a seemingly innocuous question baffled great minds and stimulated exciting mathematics with far-flung applications. This is the entertaining story of those who failed to prove, and those who ultimately did prove, that four colors do indeed suffice to color any map.

Polyhedra

Polyhedra PDF Author: Peter R. Cromwell
Publisher: Cambridge University Press
ISBN: 9780521664059
Category : Mathematics
Languages : en
Pages : 498

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Book Description
Polyhedra have cropped up in many different guises throughout recorded history. In modern times, polyhedra and their symmetries have been cast in a new light by combinatorics an d group theory. This book comprehensively documents the many and varied ways that polyhedra have come to the fore throughout the development of mathematics. The author strikes a balance between covering the historical development of the theory surrounding polyhedra, and presenting a rigorous treatment of the mathematics involved. It is attractively illustrated with dozens of diagrams to illustrate ideas that might otherwise prove difficult to grasp. Historians of mathematics, as well as those more interested in the mathematics itself, will find this unique book fascinating.

CRC Concise Encyclopedia of Mathematics

CRC Concise Encyclopedia of Mathematics PDF Author: Eric W. Weisstein
Publisher: CRC Press
ISBN: 1420035223
Category : Mathematics
Languages : en
Pages : 3253

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Book Description
Upon publication, the first edition of the CRC Concise Encyclopedia of Mathematics received overwhelming accolades for its unparalleled scope, readability, and utility. It soon took its place among the top selling books in the history of Chapman & Hall/CRC, and its popularity continues unabated. Yet also unabated has been the d