Overview

Sub-Riemannian geometry (also known as Carnot geometry in France, and non-holonomic Riemannian geometry in Russia) has been a full research domain for fifteen years, with motivations and ramifications in several parts of pure and applied mathematics, namely: * control theory * classical mechanics * Riemannian geometry (of which sub-Riemannian geometry constitutes a natural generalization, and where sub-Riemannian metrics may appear as limit cases) * diffusion on manifolds * analysis of hypoelliptic operators * Cauchy-Riemann (or CR) geometry. Although links between these domains had been foreseen by many authors in the past, it is only in recent years that sub- Riemannian geometry has been recognized as a possible common framework for all these topics. This book provides an introduction to sub-Riemannian geometry and presents the state of the art and open problems in the field. It consists of five coherent and original articles by the leading specialists: * Andre Bellaiche: The tangent space in sub-Riemannian geometry * Mikhael Gromov: Carnot-Caratheodory spaces seen from within * Richard Montgomery: Survey of singular geodesics * Hector J. Sussmann: A cornucopia of four-dimensional abnormal sub-Riemannian minimizers * Jean-Michel Coron: Stabilization of controllable systems

Full Product Details

Author:   Andre Bellaiche ,  Jean-Jaques Risler
Publisher:   Birkhauser Verlag AG
Imprint:   Birkhauser Verlag AG
Edition:   Softcover reprint of the original 1st ed. 1996
Volume:   144
Dimensions:   Width: 15.50cm , Height: 2.10cm , Length: 23.50cm
Weight:   0.616kg
ISBN:  

9783034899468

ISBN 10:   3034899467
Pages:   398
Publication Date:   18 October 2011
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand  
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Table of Contents

The tangent space in sub-Riemannian geometry.- § 1. Sub-Riemannian manifolds.- § 2. Accessibility.- § 3. Two examples.- § 4. Privileged coordinates.- § 5. The tangent nilpotent Lie algebra and the algebraic structure of the tangent space.- § 6. Gromov’s notion of tangent space.- § 7. Distance estimates and the metric tangent space.- § 8. Why is the tangent space a group?.- References.- Carnot-Carathéodory spaces seen from within.- § 0. Basic definitions, examples and problems.- § 1. Horizontal curves and small C-C balls.- § 2. Hypersurfaces in C-C spaces.- § 3. Carnot-Carathéodory geometry of contact manifolds.- § 4. Pfaffian geometry in the internal light.- § 5. Anisotropic connections.- References.- Survey of singular geodesics.- § 1. Introduction.- § 2. The example and its properties.- § 3. Some open questions.- § 4. Note in proof.- References.- A cornucopia of four-dimensional abnormal sub-Riemannian minimizers.- § 1. Introduction.- § 2. Sub-Riemannian manifolds and abnormal extremals.- § 3. Abnormal extremals in dimension 4.- § 4. Optimality.- § 5. An optimality lemma.- § 6. End of the proof.- § 7. Strict abnormality.- § 8. Conclusion.- References.- Stabilization of controllable systems.- § 0. Introduction.- § 1. Local controllability.- § 2. Sufficient conditions for local stabilizability of locally controllable systems by means of stationary feedback laws.- § 3. Necessary conditions for local stabilizability by means of stationary feedback laws.- § 4. Stabilization by means of time-varying feedback laws.- § 5. Return method and controllability.- References.

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