Topics in Differential Geometry - 1st Edition - ISBN: 9780126028508, 9781483272696

Topics in Differential Geometry

1st Edition

Editors: Hanno Rund William F. Forbes
eBook ISBN: 9781483272696
Imprint: Academic Press
Published Date: 1st January 1976
Page Count: 196
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Description

Topics in Differential Geometry is a collection of papers related to the work of Evan Tom Davies in differential geometry. Some papers discuss projective differential geometry, the neutrino energy-momentum tensor, and the divergence-free third order concomitants of the metric tensor in three dimensions. Other papers explain generalized Clebsch representations on manifolds, locally symmetric vector fields in a Riemannian space, mean curvature of immersed manifolds, and differential geometry of totally real submanifolds. One paper considers the symmetry of the first and second order for a vector field in a Riemannnian space to arrive at conditions the vector field satisfies. Another paper examines the concept of a smooth manifold-tensor and the three types of connections on the tangent bundle TM, their properties, and their inter-relationships. The paper explains some clarification on the relationship between several related known concepts in the differential geometry of TM, such as the system of general paths of Douglas, the nonlinear connections of Barthel, ano and Ishihara, as well as the nonhomogeneous connection of Grifone. The collection is suitable for mathematicians, geometricians, physicists, and academicians interested in differential geometry.

Table of Contents


List of Contributors

Preface

Evan Tom Davies

References

Reminiscences of E. T. Davies

1. Projective Differential Geometry

2. Theory of Connections

References

The Uniqueness of the Neutrino Energy-Momentum Tensor and the Einstein-Weyl Equations

1. Introduction

2. Proofs of the Theorems

Appendix

References

(G, E) Structures

References

Tensorial Concomitants of an Almost Complex Structure

1. Introduction

2. A Special Chart for an Almost Complex Structure

3. A "Natural" Hermitian, Symmetric, Bilinear Form on an Almost Complex Manifold

4. The S Derivative

References

Variétés Symplectiques, Variétés Canoniques, et Systèmes Dynamiques

Introduction

I. Variétés Symplectiques et Variétés de Contact

1. Variétés Symplectiques Exactes

2. Variétés Symplectiques Exactes et Varietes de Contact

II. Systèmes Dynamiques

3. La Variété de Contact des États d'un Systeme Dynamique

4. Systeme Differentiel sur la Variete de Contact des Etats

5. Le Système Différentiel Usuel de Hamilton

III. Transformations Canoniques

6. Notion de Structure Canonique

7. L'ideal I, de l'Algèbre Extérieure des Formes d'Une Variété Canonique et Les Cartes Canoniques

8. Transformations Canoniques de (W, F, t)

9. Transformations Canoniques de (W˜, G˜, t)

10. Cas d'Une Variété Canonique á 2-forme

11. Variétés Exactes

Bibliographie

Divergence-Free Third Order Concomitants of the Metric Tensor in Three Dimensions

1. Introduction

2. The Uniqueness of Hij

References

A Functional Equation in the Characterization of Null Cone Preserving Maps

1. Introduction

2. Basic Hypotheses

3. Reduction to Functional Equations

4. Reduction to One Unknown Function

5. Reduction to Cauchy's Equation

6. Unification of Results

7. Additional Remarks

References

Generalized Clebsch Representations on Manifolds

1. Introduction

2. The Generalized Clebsch Representation

3. The Gauge Transformations

4. Associated Variational Problems

5. The Case n = 3

6. The Case n = 4

7. Higher Order Variational Problems Resulting from Clebsch Representations

References

Note on Locally Symmetric Vector Fields in a Riemannian Space

1. Introduction

2. Symmetry

3. First Order Local Symmetry

4. n > 3

5. n > 3: Spaces of Constant Curvature

6. n = 3

7. n = 3: Spaces of Constant Curvature

8. Second Order Local Symmetry

9. Second Order Symmetry: n > 3

10. Second Order Symmetry: n = 3

11. Orientation of Galaxies

Mean Curvature of Immersed Manifolds

1.

2.

3. Immersions in Riemannian Manifolds

4. Immersions of Surfaces in S3

5. Conformai Invariants

References

Connections and M-Tensors on the Tangent Bundle TM

1. Introduction

2. The Tangent Bundle and the Slit Tangent Bundle

3. Connections and M-Tensors and Their Simple Properties

4. (1, 1)-Connections as Horizontal Distributions on TM

5. Vector Fields on TM and Their Relation with a (1, 1)-Connection

6. (1, 0)-Connection on STM as Systems of Paths in M and as Second Order Differential Equations on M

7. Mappings Between Connections of Different Types and Their Compositions

8. Decomposition Theorems

References

Differential Geometry of Totally Real Submanifolds

0. Introduction

1. Preliminaries

2. Totally Real Submanifolds

3. Covariant Derivatives of fxi, fhy, and fxy

4. The Case in Which M2m Is a Complex Space Form

5. The Case in Which the Bochner Curvature Tensor of M2m Vanishes

References

Details

No. of pages:
196
Language:
English
Copyright:
© Academic Press 1976
Published:
Imprint:
Academic Press
eBook ISBN:
9781483272696

About the Editor

Hanno Rund

William F. Forbes

William Forbes is a visiting Professor of Economics at Waterford Institute of Technology, Ireland and Groningen University, Netherlands. Forbes has researched and taught upon behavioural finance for nearly twenty years. Previously he has worked in Exeter, Manchester, Glasgow and Loughborough Universities.

Affiliations and Expertise

Waterford Institute of Technology, Ireland and Groningen University, Netherlands