Inversive Geometry
This introduction to algebraic geometry makes particular reference to the operation of inversion and is suitable for advanced undergraduates and graduate students of mathematics. One of the major contributions to the relatively small literature on inversive geometry, the text illustrates the field's applications to comparatively elementary and practical questions and offers a solid foundation for more advanced courses.
The two-part treatment begins with the applications of numbers to Euclid's planar geometry, covering inversions; quadratics; the inversive group of the plane; finite inversive groups; parabolic, hyperbolic, and elliptic geometries; the celestial sphere; flow; and differential geometry. The second part addresses the line and the circle; regular polygons; motions; the triangle; invariants under homologies; rational curves; conics; the cardioid and the deltoid; Cremona transformations; and the n-line.
"1004703956"
Inversive Geometry
This introduction to algebraic geometry makes particular reference to the operation of inversion and is suitable for advanced undergraduates and graduate students of mathematics. One of the major contributions to the relatively small literature on inversive geometry, the text illustrates the field's applications to comparatively elementary and practical questions and offers a solid foundation for more advanced courses.
The two-part treatment begins with the applications of numbers to Euclid's planar geometry, covering inversions; quadratics; the inversive group of the plane; finite inversive groups; parabolic, hyperbolic, and elliptic geometries; the celestial sphere; flow; and differential geometry. The second part addresses the line and the circle; regular polygons; motions; the triangle; invariants under homologies; rational curves; conics; the cardioid and the deltoid; Cremona transformations; and the n-line.
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Inversive Geometry

Inversive Geometry

Inversive Geometry

Inversive Geometry

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Overview

This introduction to algebraic geometry makes particular reference to the operation of inversion and is suitable for advanced undergraduates and graduate students of mathematics. One of the major contributions to the relatively small literature on inversive geometry, the text illustrates the field's applications to comparatively elementary and practical questions and offers a solid foundation for more advanced courses.
The two-part treatment begins with the applications of numbers to Euclid's planar geometry, covering inversions; quadratics; the inversive group of the plane; finite inversive groups; parabolic, hyperbolic, and elliptic geometries; the celestial sphere; flow; and differential geometry. The second part addresses the line and the circle; regular polygons; motions; the triangle; invariants under homologies; rational curves; conics; the cardioid and the deltoid; Cremona transformations; and the n-line.

Product Details

ISBN-13: 9780486493398
Publisher: Dover Publications
Publication date: 01/15/2014
Series: Dover Books on Mathematics
Edition description: Reprint
Pages: 288
Product dimensions: 5.40(w) x 8.40(h) x 0.80(d)

Table of Contents

Preface v

Part I

Chapter I Operations of Elementary Geometry 1

§§1 Instruments

§§2 Rotations

§§3 Translations and Reversions

§§4 The Product of Reversions

§§5 Stretches

§§6 Parallel Co-ordinates

Chapter II Algebra 12

§§7 Algebra

§§8 Multiplication

§§9 Trigonometry

§§10 Functions

§§11 The Derivative

§§12 The Logarithm

§§13 The Exponential

Chapter III The Euclidean Group 24

§§14 Homologies

§§15 Antilogies

§§16 The Product of Stretches

§§17 The Product of Rotations

§§18 The Product of Homologies

§§19 Twists

Chapter IV Inversions 38

§§20 Cross-ratios

§§21 Inversions

§§22 Inversors

§§23 Properties of an Inversion

§§24 Normal Circles

§§25 The Lune and the Ring

§§26 The Canonical Form

Chapter V Quadratics 52

§§27 The Bilinear Invariant

§§28 The Jacobian

§§29 The Vector

§§30 Theory of the Four-point

§§31 The Ordered Six-point

§§32 The Complete System

Chapter VI The Inversive Group of the Plane 63

§§33 Fixed Points

§§34 Invariants of a Homography

§§35 Composition of Homographies

§§36 Invariants of an Antigraphy

§§37 The Canonical Form

§§38 The Determinant of Powers

Chapter VII Finite Inversive Groups 75

§§39 The Inversive Group of the Three-point

§§40 The Cycle of Six Points

§§41 Intrinsic Co-ordinates

§§42 Geometric Solution of the Cubic Equation

§§43 The Groups of the Rectangle and Rhombus

§§44 Doubly-special Four-points

§§45 The Regular Polyhedra

Chapter VIII Parabolic, Hyperbolic, and Elliptic Geometries 87

§§46 Analytic Expressions for the Three Subgroups

§§47 Infinity

§§48 Distance

§§49 Curvature

§§50 Motions

§§51 The Vector of Two Homographies

Chapter IX The Celestial Sphere 97

§§52 Geometry within a Sphere

§§53 The Directed Cylinder

§§54 The Determinant of Powers

§§55 The Radius of the Cylinder

§§56 The Rectangular Hexagon

§§57 The Configuration of Ten Lines

§§58 Geometry of the Three-line

§§59 Rectangular Axes

§§60 The Euclidean Case

§§61 Six Perpendicular Lines

§§62 The Vector of Two Directed Cylinders

§§63 The Relation D5

§§64 The Caustic of a Correspondence

Chapter X Flow 117

§§65 Analytic Flow

§§66 Standard Case of Radial Flow

§§67 Two Equal Sinks

§§68 Three Equal Sinks

§§69 The Rational Fraction

§§70 The Doublet

§§71 Two Opposed Doublets

§§72 Flow with Doublets, Sinks, and Sources

§§73 Vortices

Chapter XI Differential Geometry 130

§§74 The Translational Derivative

§§75 The Homologous Derivative

§§76 The Homographic Derivative

§§77 Homographic Invariants of a Curve

§§78 Special Cases

§§79 Schwarz's Integral

§§80 Conformal Mapping

Part II

Chapter XII The Line and the Circle 151

§§81 Map-equations of a Line

§§82 Self-conjugate Equations of a Line

§§83 The Base-circle

§§84 Envelopes

§§85 Map-equations of a Circle

§§86 Self-conjugate Equation of a Circle

§§87 The n-line

§§88 Stretches

Chapter XIII Regular Polygons 166

§§89 The Regular Pentagon

§§90 The Regular Heptagon

§§91 The Regular 11-gon

§§92 Knots

Chapter XIV Motions 177

§§93 The Equation of a Motion

§§94 The Point of No Velocity

§§95 The Points of No Acceleration

§§96 The Curvature of a Path

§§97 Envelopes

§§98 The da Vinci Motion

§§99 Three-bar Motion

Chapter XV The Triangle 186

§§100 The Nine-point Circle

§§101 The Orthocentre

§§102 The Centroid

§§103 Euler's Relation

§§104 Feuerbach's Theorem

§§105 Interpolation

§§106 Taylor's Circle

§§107 The Incentrea

§§108 The Circle of Images

§§109 Focal Pairing

§§110 The Pedal Circles

§§111 The Invariant I2

Chapter XVI Invariants Under Homologies 201

§§112 Constants under Translations

§§113 Lagrange Resolvents

§§114 The Case of the Triangle

§§115 The Four-point

§§116 The Hexagon

§§117 Baryeentric Co-ordinates

§§118 Foci

Chapter XVII Rational Curves 219

§§119 The Curves

§§120 The Foci

§§121 The Double Points

§§122 Cusps

§§123 The Curve R2

§§124 Sections of Rn by a Circle

§§125 Sections of an Rn by a Cn-2

§§126 Degeneration

§§127 Mechanical Description of Rn.

Chapter XVIII Conics 228

§§128 The Parabola

§§129 Lines of the Curve

§§130 Theory of the Four-line

§§131 Sections by a Circle

§§132 Bifocal Conies

§§133 Lines of the Curve

§§134 Theory of the Five-line

§§135 Section by a Circle

§§136 The Images of a Point

Chapter XIX The Cardioid and the Deltoid 239

§§137 The Cardioid

§§138 Lines of the Cardioid

§§139 The Section by a Line

§§140 Two Cardioids

§§141 The Deltoid

Chapter XX Cremona Transformations 248

§§142 A Simple Illustration

§§143 Focal Pairing

§§144 Intrinsic Co-ordinates

§§145 The Geiser Transformation

§§146 The Bertini Transformation

Chapter XXI The n-Line 259

§§147 Cyclogens

§§148 Osculants

§§149 Construction of a Cyclogen

§§150 Clifford's Chain

§§151 The n-fold Parabola

§§152 Foci

Index 273

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