Von Eins bis Neun - Große Wunder hinter kleinen Zahlen

Über 100 mathematische Exkursionen für Neugierige und Genießer

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Author: Marc Chamberland

Publisher: Springer-Verlag

ISBN: 3662502518

Category: Mathematics

Page: 234

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Eine Schatztruhe mathematischer MiniaturenDieses Buch ist eine Einladung zu einer spannenden Entdeckungsreise. Ausgehend von den einstelligen Zahlen eröffnet Marc Chamberland seinen Lesern den Blick auf eine weite mathematische Landschaft. Warum zeigt ein Skatspiel, das man achtmal perfekt gemischt hat, wieder genau dieselbe Kartenfolge? Sind zwei beliebige Menschen auf der ganzen Erde tatsächlich über eine „Bekanntenkette von sechs Personen“ miteinander verbunden? Weshalb lässt sich jede Landkarte mit nur vier Farben so einfärben, dass sich nie zwei Gebiete mit derselben Farbe berühren? Die Zahlen Eins bis Neun erweisen sich als höchst bemerkenswerte mathematische Objekte, von denen aus der Autor ein Netz von Querverbindungen zu verschiedenen Feldern der Mathematik spannt, von der Zahlentheorie über die Geometrie, die Chaostheorie und die numerische Mathematik bis zur mathematischen Physik.Jedes Kapitel ist einer dieser neun Zahlen gewidmet. Zu Beginn stehen stets einfache Problemstellungen; im Verlauf des Kapitels nimmt der Schwierigkeitsgrad zu. Jedes Mal durchstreift Chamberland ein weitläufiges Areal: So ist etwa die Drei ebenso mit der Chaostheorie verknüpft wie mit einem noch ungelösten Problem der ägyptischen Brüche, mit der Anzahl der Aufsichthabenden in einer Kunstgalerie und der Problematik von Wahlergebnissen. Bei der Sieben geht es um Matrizenmultiplikation, die Transsilvanienlotterie, die Synchronisation von Signalen und den Klang einer Trommel. Immer wieder sind auch Rätsel zu lösen wie das der perfekten Quadrate, das Huträtsel oder die Catalan‘sche Vermutung. Das Buch ist in viele kurze Abschnitte unterteilt, die man unabhängig lesen und häppchenweise konsumieren kann – was beim Ham-Sandwich-Satz und beim Pizzatheorem durchaus wörtlich genommen werden darf.Mit den über 100 Miniaturen öffnet der Autor eine wahre mathematische Schatztruhe – für Neugierige und Kenner, für Oberstufenschüler wie für Hochschulstudenten, für gestandene Mathematiker ebenso wie für alle, die von Mustern fasziniert sind.

Surveys on Discrete and Computational Geometry

Twenty Years Later : AMS-IMS-SIAM Joint Summer Research Conference, June 18-22, 2006, Snowbird, Utah

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Author: Jacob E. Goodman

Publisher: American Mathematical Soc.

ISBN: 0821842390

Category: Mathematics

Page: 556

View: 7644

This volume contains nineteen survey papers describing the state of current research in discrete and computational geometry as well as a set of open problems presented at the 2006 AMS-IMS-SIAM Summer Research Conference Discrete and Computational Geometry--Twenty Years Later, held in Snowbird, Utah, in June 2006. Topics surveyed include metric graph theory, lattice polytopes, the combinatorial complexity of unions of geometric objects, line and pseudoline arrangements, algorithmic semialgebraic geometry, persistent homology, unfolding polyhedra, pseudo-triangulations, nonlinear computational geometry, $k$-sets, and the computational complexity of convex bodies.

Geometry of Convex Sets

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Author: I. E. Leonard,J. E. Lewis

Publisher: John Wiley & Sons

ISBN: 1119022665

Category: Mathematics

Page: 352

View: 4045

A gentle introduction to the geometry of convex sets in n–dimensional space Geometry of Convex Sets begins with basic definitions of the linear concepts of addition and scalar multiplication and then defines the notion of convexity for subsets of n–dimensional space. Many properties of convex sets can be discovered using just the linear structure. However, for more interesting results, it is necessary to discuss the notion of distance about open sets, closed sets, bounded sets, and compact sets. The book illustrates the interplay between these linear and topological concepts, which makes the notion of convexity so appealing. Thoroughly class–tested, the book discusses topology and convexity in the context of normed linear spaces, specifically with a norm topology on an n–dimensional space. Geometry of Convex Sets also features: An introduction to n–dimensional geometry including points; lines; vectors; distance; norms; inner products; orthogonality; convexity; hyperplanes; and linear functionals An introduction to n–dimensional norm topology including interior points and open sets; accumulation points and closed sets; boundary points and closed sets; compact subsets of n–dimensional space; completeness of n–dimensional space; sequences; equivalent norms; distance between sets; and support hyperplanes Basic properties of convex sets; convex hulls; interior and closure of convex sets; closed convex hulls; accessibility lemma; regularity of convex sets; affine hulls; flats or affine subspaces; affine basis theorem; separation theorems; extreme points of convex sets; supporting hyperplanes and extreme points; existence of extreme points; Krein–Milman theorem; polyhedral sets and polytopes; and Birkhoff s theorem on doubly stochastic matrices Discussions on Helly s theorem; the Art Gallery theorem; Vincensini s problem; Hadwiger s theorems; theorems of Radon and Caratheodory; Kirchberger s theorem; Helly–type theorems for circles; covering problems; piercing problems; sets of constant width; Reuleaux triangles; Barbier s theorem; and Borsuk s problem Geometry of Convex Sets is a useful textbook for upper–undergraduate level courses in geometry of convex sets and is essential for graduate level courses in convex analysis. An excellent reference for academics and readers interested in learning the various applications of higher geometry, the book is also appropriate for teachers who would like to convey a better understanding and appreciation of the field to students.

Combinatorial geometry

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Author: János Pach,Pankaj K. Agarwal

Publisher: Wiley-Interscience

ISBN: 9780471588900

Category: Mathematics

Page: 354

View: 3911

A complete, self-contained introduction to a powerful and resurging mathematical discipline . Combinatorial Geometry presents and explains with complete proofs some of the most important results and methods of this relatively young mathematical discipline, started by Minkowski, Fejes Toth, Rogers, and Erd???s. Nearly half the results presented in this book were discovered over the past twenty years, and most have never before appeared in any monograph. Combinatorial Geometry will be of particular interest to mathematicians, computer scientists, physicists, and materials scientists interested in computational geometry, robotics, scene analysis, and computer-aided design. It is also a superb textbook, complete with end-of-chapter problems and hints to their solutions that help students clarify their understanding and test their mastery of the material. Topics covered include: * Geometric number theory * Packing and covering with congruent convex disks * Extremal graph and hypergraph theory * Distribution of distances among finitely many points * Epsilon-nets and Vapnik--Chervonenkis dimension * Geometric graph theory * Geometric discrepancy theory * And much more

An introduction to programming with Mathematica

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Author: Richard J. Gaylord,Samuel N. Kamin,Paul R. Wellin

Publisher: Telos Pr

ISBN: 9780387944340

Category: Computers

Page: 452

View: 5749

Introduction to Programming with Mathematica is designed to teach Mathematica programming to scientists, engineers, mathematicians, and computer scientists so that they can fully utilize Mathematica for their work in research or education. No prior familiarity with Mathematica or programming is assumed. The text can be used either for individual study by students and professionals or in a Mathematica-related university course. The second edition of the book and diskette contains a number of new features: a new chapter on Applications (Chapter 11), additional material on packages, and more exercises throughout. Solutions to the exercises are provided both in the book and on the accompanying diskette.

Mathematische Edelsteine

der elementaren Kombinatorik, Zahlentheorie und Geometrie

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Author: Ross Honsberger

Publisher: Springer-Verlag

ISBN: 3322859304

Category: Mathematics

Page: 179

View: 9181

Mathematische Juwelen

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Author: Ross Honsberger

Publisher: Springer-Verlag

ISBN: 3322872653

Category: Technology & Engineering

Page: 168

View: 7822

Elemente der Mathematik

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Author: N.A

Publisher: N.A

ISBN: N.A

Category: Mathematics

Page: N.A

View: 9430

Elemente der Mathematik (EL) publishes survey articles about important developments in the field of mathematics; stimulating shorter communications that tackle more specialized questions; and papers that report on the latest advances in mathematics and applications in other disciplines. The journal does not focus on basic research. Rather, its articles seek to convey to a wide circle of readers - teachers, students, engineers, professionals in industry and administration - the relevance, intellectual challenge and vitality of mathematics today. The Problems Section, covering a diverse range of exercises of varying degrees of difficulty, encourages an active grappling with mathematical problems.