springer humana jun 2007 (4 risultati)

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -If you have ever gazed through the eyepiece of a telescope at the magnificent rings and banded globe of Saturn, or found yourself breathless at the sight of long shadows jutting across crater floors on the terminator of the Moon, then you will understand the power of those direct visual experiences. You are present at a unique event, a connection between a part of the cosmos, your eye and brain. Sketching preserves this tie with direct observation because it allows the observer to spend time at the eyepiece surveying the object intimately while drawing. This personal experiential relationship to celestial objects differentiates astronomical sketching from photographic or CCD imaging. Sketching is an excellent way to record personal encounters with the celestial wonders, because as you are drawing, you are training your eye to perceive ever greater detail, taking the fullest advantage of your telescope's light grasp and resolution. Moreover, astronomical sketches can be artwork in themselves, for display and decoration in the home or observatory.Despite the fact that there are a wide variety of drawing media and techniques, there exists no comprehensive treatment of the subject of astronomical sketching. This book will present the amateur with fine examples of astronomical sketches and step-by-step tutorials in each medium, including pencil, pen and ink, chalks and pastels, painting and computer graphics programs. This unique book can teach almost anyone to create beautiful sketches of celestial objects by following simple, illustrated, step-by-step instructions.Readers can select a chapter related to their preferred class of object, and rapidly learn techniques in several media. Each chapter contains useful information regarding equipment, types of telescope and eyepiece combinations, techniques for preserving and archiving sketches, and suggestions for accurate record keeping. 216 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Despite the existence of a wide variety of drawing media and techniques, there is until now no comprehensive treatment of astronomical sketching. This book presents the amateur with fine examples of astronomical sketches and step-by-step tutorials in each popular medium, including pencil, pen and ink, chalks and pastels, painting and computer graphics programs. This unique book can teach almost anyone to create beautiful sketches of celestial objects by following simple, illustrated, step-by-step instructions. Readers can choose a chapter related to their preferred class of object, and rapidly absorb techniques in several media. Each chapter provides useful information regarding equipment, types of telescope and eyepiece combinations, techniques for preserving and archiving sketches, and suggestions for accurate record keeping. This book could become a classic.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 216 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is designed to provide a path for the reader into an amalgamation oftwo venerable areas ofmathematics, Dynamical Systems and Number Theory. Many of the motivating theorems and conjectures in the new subject of Arithmetic Dynamics may be viewed as the transposition ofclassical results in the theory ofDiophantine equations to the setting of discrete dynamical systems, especially to the iteration theory ofmaps on the projective line and other algebraic varieties. Although there is no precise dictionary connecting the two areas, the reader will gain a flavor of the correspondence from the following associations: Diophantine Equations Dynamical Systems rational and integral rational and integral points on varieties points in orbits torsion points on periodic and preperiodic abelian varieties points ofrational maps There are a variety of topics covered in this volume, but inevitably the choice reflects the author's tastes and interests. Many related areas that also fall under the heading ofarithmetic or algebraic dynamics have been omitted in order to keep the book to a manageable length. A brief list of some of these omitted topics may be found in the introduction. Online Resources The reader will find additonal material, references and errata at math. brown. ectu/-jhs/ADSHome. html Acknowledgments The author has consulted a great many sources in writing this book. Every attempt has been made to give proper attribution for all but the most standard results. 528 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book investigates the relatively new subject of Arithmetic Dynamics, which is the study of the number theoretic properties of algebraic numbers or points under repeated application of a polynomial or rational map. Classical discrete dynamics is the study of iteration of functions mapping the complex plane (or real line) to itself. Arithmetic dynamics is the study of the number-theoretic properties of rational and algebraic points under repeated application of a polynomial or rational function. The viewpoint of this book is that many of the fundamental problems in the theory of Diophantine equations have dynamical analogs. As is typical in any subject combining Diophantine problems and geometry, an overarching theme is that at least qualitatively, the geometry determines the arithmetic.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 528 pp. Englisch.