J. Jantosciak: Join Geometries | Taschenbuch

Cover: 9781461394402 | Join Geometries | A Theory of Convex Sets and Linear Geometry | Buch

Rückseite: 9781461394402 | Join Geometries | A Theory of Convex Sets and Linear Geometry | Buch

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Sprache: Englisch

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Beschreibung

The main object of this book is to reorient and revitalize classical geometry in a way that will bring it closer to the mainstream of contemporary mathematics. The postulational basis of the subject will be radically revised in order to construct a broad-scale and conceptually unified treatment. The familiar figures of classical geometry-points, segments, lines, planes, triangles, circles, and so on-stem from problems in the physical world and seem to be conceptually unrelated. However, a natural setting for their study is provided by the concept of convex set, which is compara tively new in the history of geometrical ideas. The familiarfigures can then appear as convex sets, boundaries of convex sets, or finite unions of convex sets. Moreover, two basic types of figure in linear geometry are special cases of convex set: linear space (point, line, and plane) and halfspace (ray, halfplane, and halfspace). Therefore we choose convex set to be the central type of figure in our treatment of geometry. How can the wealth of geometric knowledge be organized around this idea? By defini tion, a set is convex if it contains the segment joining each pair of its points; that is, if it is closed under the operation of joining two points to form a segment. But this is precisely the basic operation in Euclid.

Inhaltsverzeichnis

1 The Join and Extension Operations in Euclidean Geometry.- 2 The Abstract Theory of Join Operations.- 3 The Generation of Convex Sets-Convex Hulls.- 4 The Operation of Extension.- 5 Join Geometries.- 6 Linear Sets.- 7 Extremal Structure of Convex Sets: Components and Faces.- 8 Rays and Halfspaces.- 9 Cones and Hypercones.- 10 Factor Geometries and Congruence Relations.- 11 Exchange Join Geometries-The Theory of Incidence and Dimension.- 12 Ordered Join Geometries.- 13 The Structure of Polytopes in an Ordered Geometry.- References.

Erscheinungsjahr:	2011
Fachbereich:	Geometrie
Genre:	Importe , Mathematik
Rubrik:	Naturwissenschaften & Technik
Medium:	Taschenbuch
Inhalt:	534 S.
ISBN-13:	9781461394402
ISBN-10:	1461394406
Sprache:	Englisch
Einband:	Kartoniert / Broschiert
Autor:	Jantosciak, J. Prenowitz, W.
Auflage:	Softcover reprint of the original 1st edition 1979
Hersteller:	Springer New York Springer US, New York, N.Y.
Verantwortliche Person für die EU:	Springer Verlag GmbH, Tiergartenstr. 17, D-69121 Heidelberg, juergen.hartmann@springer.com
Maße:	235 x 155 x 30 mm
Von/Mit:	J. Jantosciak (u. a.)
Erscheinungsdatum:	09.12.2011
Gewicht:	0,838 kg

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