Metric Spaces of Non-Positive Curvature

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Publisher : Springer Science & Business Media
ISBN 13 : 3662124947
Total Pages : 665 pages
Book Rating : 4.6/5 (621 download)

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Book Synopsis Metric Spaces of Non-Positive Curvature by : Martin R. Bridson

Download or read book Metric Spaces of Non-Positive Curvature written by Martin R. Bridson and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of the global properties of simply-connected spaces that are non-positively curved in the sense of A. D. Alexandrov, and the structure of groups which act on such spaces by isometries. The theory of these objects is developed in a manner accessible to anyone familiar with the rudiments of topology and group theory: non-trivial theorems are proved by concatenating elementary geometric arguments, and many examples are given. Part I provides an introduction to the geometry of geodesic spaces, while Part II develops the basic theory of spaces with upper curvature bounds. More specialized topics, such as complexes of groups, are covered in Part III.

Metric Spaces, Convexity and Nonpositive Curvature

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Publisher : European Mathematical Society
ISBN 13 : 9783037190104
Total Pages : 306 pages
Book Rating : 4.1/5 (91 download)

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Book Synopsis Metric Spaces, Convexity and Nonpositive Curvature by : Athanase Papadopoulos

Download or read book Metric Spaces, Convexity and Nonpositive Curvature written by Athanase Papadopoulos and published by European Mathematical Society. This book was released on 2005 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Lectures on Spaces of Nonpositive Curvature

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Publisher : Birkhäuser
ISBN 13 : 3034892403
Total Pages : 114 pages
Book Rating : 4.0/5 (348 download)

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Book Synopsis Lectures on Spaces of Nonpositive Curvature by : Werner Ballmann

Download or read book Lectures on Spaces of Nonpositive Curvature written by Werner Ballmann and published by Birkhäuser. This book was released on 2012-12-06 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Singular spaces with upper curvature bounds and, in particular, spaces of nonpositive curvature, have been of interest in many fields, including geometric (and combinatorial) group theory, topology, dynamical systems and probability theory. In the first two chapters of the book, a concise introduction into these spaces is given, culminating in the Hadamard-Cartan theorem and the discussion of the ideal boundary at infinity for simply connected complete spaces of nonpositive curvature. In the third chapter, qualitative properties of the geodesic flow on geodesically complete spaces of nonpositive curvature are discussed, as are random walks on groups of isometries of nonpositively curved spaces. The main class of spaces considered should be precisely complementary to symmetric spaces of higher rank and Euclidean buildings of dimension at least two (Rank Rigidity conjecture). In the smooth case, this is known and is the content of the Rank Rigidity theorem. An updated version of the proof of the latter theorem (in the smooth case) is presented in Chapter IV of the book. This chapter contains also a short introduction into the geometry of the unit tangent bundle of a Riemannian manifold and the basic facts about the geodesic flow. In an appendix by Misha Brin, a self-contained and short proof of the ergodicity of the geodesic flow of a compact Riemannian manifold of negative curvature is given. The proof is elementary and should be accessible to the non-specialist. Some of the essential features and problems of the ergodic theory of smooth dynamical systems are discussed, and the appendix can serve as an introduction into this theory.

Nonpositive Curvature: Geometric and Analytic Aspects

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Publisher : Birkhäuser
ISBN 13 : 3034889186
Total Pages : 116 pages
Book Rating : 4.0/5 (348 download)

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Book Synopsis Nonpositive Curvature: Geometric and Analytic Aspects by : Jürgen Jost

Download or read book Nonpositive Curvature: Geometric and Analytic Aspects written by Jürgen Jost and published by Birkhäuser. This book was released on 2012-12-06 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book contains the lecture notes from a "Nachdiplomvorlesung", a topics course adressed to Ph. D. students, at the ETH ZUrich during the winter term 95/96. Consequently, these notes are arranged according to the requirements of organizing the material for oral exposition, and the level of difficulty and the exposition were adjusted to the audience in Zurich. The aim of the course was to introduce some geometric and analytic concepts that have been found useful in advancing our understanding of spaces of nonpos itive curvature. In particular in recent years, it has been realized that often it is useful for a systematic understanding not to restrict the attention to Riemannian manifolds only, but to consider more general classes of metric spaces of generalized nonpositive curvature. The basic idea is to isolate a property that on one hand can be formulated solely in terms of the distance function and on the other hand is characteristic of nonpositive sectional curvature on a Riemannian manifold, and then to take this property as an axiom for defining a metric space of nonposi tive curvature. Such constructions have been put forward by Wald, Alexandrov, Busemann, and others, and they will be systematically explored in Chapter 2. Our focus and treatment will often be different from the existing literature. In the first Chapter, we consider several classes of examples of Riemannian manifolds of nonpositive curvature, and we explain how conditions about nonpos itivity or negativity of curvature can be exploited in various geometric contexts.

Manifolds of Nonpositive Curvature

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Publisher : Springer Science & Business Media
ISBN 13 : 1468491598
Total Pages : 266 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Manifolds of Nonpositive Curvature by : Werner Ballmann

Download or read book Manifolds of Nonpositive Curvature written by Werner Ballmann and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a complete and self-contained description of new results in the theory of manifolds of nonpositive curvature. It is based on lectures delivered by M. Gromov at the Collège de France in Paris. Therefore this book may also serve as an introduction to the subject of nonpositively curved manifolds. The latest progress in this area is reflected in the article of W. Ballmann describing the structure of manifolds of higher rank.

Nonpositive Curvature: Geometric and Analytic Aspects

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Publisher : Springer Science & Business Media
ISBN 13 : 9783764357368
Total Pages : 124 pages
Book Rating : 4.3/5 (573 download)

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Book Synopsis Nonpositive Curvature: Geometric and Analytic Aspects by : Jürgen Jost

Download or read book Nonpositive Curvature: Geometric and Analytic Aspects written by Jürgen Jost and published by Springer Science & Business Media. This book was released on 1997-05-01 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book contains the lecture notes from a "Nachdiplomvorlesung", a topics course adressed to Ph. D. students, at the ETH ZUrich during the winter term 95/96. Consequently, these notes are arranged according to the requirements of organizing the material for oral exposition, and the level of difficulty and the exposition were adjusted to the audience in Zurich. The aim of the course was to introduce some geometric and analytic concepts that have been found useful in advancing our understanding of spaces of nonpos itive curvature. In particular in recent years, it has been realized that often it is useful for a systematic understanding not to restrict the attention to Riemannian manifolds only, but to consider more general classes of metric spaces of generalized nonpositive curvature. The basic idea is to isolate a property that on one hand can be formulated solely in terms of the distance function and on the other hand is characteristic of nonpositive sectional curvature on a Riemannian manifold, and then to take this property as an axiom for defining a metric space of nonposi tive curvature. Such constructions have been put forward by Wald, Alexandrov, Busemann, and others, and they will be systematically explored in Chapter 2. Our focus and treatment will often be different from the existing literature. In the first Chapter, we consider several classes of examples of Riemannian manifolds of nonpositive curvature, and we explain how conditions about nonpos itivity or negativity of curvature can be exploited in various geometric contexts.

An Invitation to Alexandrov Geometry

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Publisher : Springer
ISBN 13 : 3030053121
Total Pages : 88 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis An Invitation to Alexandrov Geometry by : Stephanie Alexander

Download or read book An Invitation to Alexandrov Geometry written by Stephanie Alexander and published by Springer. This book was released on 2019-05-08 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed toward graduate students and research mathematicians, with minimal prerequisites this book provides a fresh take on Alexandrov geometry and explains the importance of CAT(0) geometry in geometric group theory. Beginning with an overview of fundamentals, definitions, and conventions, this book quickly moves forward to discuss the Reshetnyak gluing theorem and applies it to the billiards problems. The Hadamard–Cartan globalization theorem is explored and applied to construct exotic aspherical manifolds.

Topics on Analysis in Metric Spaces

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Publisher : Oxford University Press, USA
ISBN 13 : 9780198529385
Total Pages : 148 pages
Book Rating : 4.5/5 (293 download)

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Book Synopsis Topics on Analysis in Metric Spaces by : Luigi Ambrosio

Download or read book Topics on Analysis in Metric Spaces written by Luigi Ambrosio and published by Oxford University Press, USA. This book was released on 2004 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the main mathematical prerequisites for analysis in metric spaces. It covers abstract measure theory, Hausdorff measures, Lipschitz functions, covering theorums, lower semicontinuity of the one-dimensional Hausdorff measure, Sobolev spaces of maps between metric spaces, and Gromov-Hausdorff theory, all developed ina general metric setting. The existence of geodesics (and more generally of minimal Steiner connections) is discussed on general metric spaces and as an application of the Gromov-Hausdorff theory, even in some cases when the ambient space is not locally compact. A brief and very general description of the theory of integration with respect to non-decreasing set functions is presented following the Di Giorgi method of using the 'cavalieri' formula as the definition of the integral. Based on lecture notes from Scuola Normale, this book presents the main mathematical prerequisites for analysis in metric spaces. Supplemented with exercises of varying difficulty it is ideal for a graduate-level short course for applied mathematicians and engineers.

Moduli Spaces of Riemannian Metrics

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Publisher : Springer
ISBN 13 : 3034809484
Total Pages : 123 pages
Book Rating : 4.0/5 (348 download)

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Book Synopsis Moduli Spaces of Riemannian Metrics by : Wilderich Tuschmann

Download or read book Moduli Spaces of Riemannian Metrics written by Wilderich Tuschmann and published by Springer. This book was released on 2015-10-14 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book studies certain spaces of Riemannian metrics on both compact and non-compact manifolds. These spaces are defined by various sign-based curvature conditions, with special attention paid to positive scalar curvature and non-negative sectional curvature, though we also consider positive Ricci and non-positive sectional curvature. If we form the quotient of such a space of metrics under the action of the diffeomorphism group (or possibly a subgroup) we obtain a moduli space. Understanding the topology of both the original space of metrics and the corresponding moduli space form the central theme of this book. For example, what can be said about the connectedness or the various homotopy groups of such spaces? We explore the major results in the area, but provide sufficient background so that a non-expert with a grounding in Riemannian geometry can access this growing area of research.

Gradient Flows

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Publisher : Springer Science & Business Media
ISBN 13 : 376438722X
Total Pages : 334 pages
Book Rating : 4.7/5 (643 download)

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Book Synopsis Gradient Flows by : Luigi Ambrosio

Download or read book Gradient Flows written by Luigi Ambrosio and published by Springer Science & Business Media. This book was released on 2008-10-29 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is devoted to the theory of gradient flows in the general framework of metric spaces, and in the more specific setting of the space of probability measures, which provide a surprising link between optimal transportation theory and many evolutionary PDE's related to (non)linear diffusion. Particular emphasis is given to the convergence of the implicit time discretization method and to the error estimates for this discretization, extending the well established theory in Hilbert spaces. The book is split in two main parts that can be read independently of each other.

Metric Structures for Riemannian and Non-Riemannian Spaces

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Publisher : Springer Science & Business Media
ISBN 13 : 0817645837
Total Pages : 594 pages
Book Rating : 4.8/5 (176 download)

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Book Synopsis Metric Structures for Riemannian and Non-Riemannian Spaces by : Mikhail Gromov

Download or read book Metric Structures for Riemannian and Non-Riemannian Spaces written by Mikhail Gromov and published by Springer Science & Business Media. This book was released on 2007-06-25 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an English translation of the famous "Green Book" by Lafontaine and Pansu (1979). It has been enriched and expanded with new material to reflect recent progress. Additionally, four appendices, by Gromov on Levy's inequality, by Pansu on "quasiconvex" domains, by Katz on systoles of Riemannian manifolds, and by Semmes overviewing analysis on metric spaces with measures, as well as an extensive bibliography and index round out this unique and beautiful book.

Spaces with Non-Symmetric Distance

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Publisher : American Mathematical Soc.
ISBN 13 : 0821812343
Total Pages : 91 pages
Book Rating : 4.8/5 (218 download)

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Book Synopsis Spaces with Non-Symmetric Distance by : Eugene Zaustinskiy

Download or read book Spaces with Non-Symmetric Distance written by Eugene Zaustinskiy and published by American Mathematical Soc.. This book was released on 1959 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Group Theory From A Geometrical Viewpoint

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Publisher : #N/A
ISBN 13 : 981456964X
Total Pages : 744 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Group Theory From A Geometrical Viewpoint by : Alberto Verjovski

Download or read book Group Theory From A Geometrical Viewpoint written by Alberto Verjovski and published by #N/A. This book was released on 1991-08-12 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings presents the latest research materials done on group theory from geometrical viewpoint in particular Gromov's theory of hyperbolic groups, Coxeter groups, Tits buildings and actions on real trees. All these are very active subjects.

Metric Methods in Finsler Spaces and in the Foundations of Geometry

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Publisher : Princeton University Press
ISBN 13 : 9780691095714
Total Pages : 256 pages
Book Rating : 4.0/5 (957 download)

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Book Synopsis Metric Methods in Finsler Spaces and in the Foundations of Geometry by : Herbert Busemann

Download or read book Metric Methods in Finsler Spaces and in the Foundations of Geometry written by Herbert Busemann and published by Princeton University Press. This book was released on 1942 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The description for this book, Metric Methods of Finsler Spaces and in the Foundations of Geometry. (AM-8), will be forthcoming.

A Course in Metric Geometry

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Publisher : American Mathematical Society
ISBN 13 : 1470468530
Total Pages : 415 pages
Book Rating : 4.4/5 (74 download)

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Book Synopsis A Course in Metric Geometry by : Dmitri Burago

Download or read book A Course in Metric Geometry written by Dmitri Burago and published by American Mathematical Society. This book was released on 2022-01-27 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Metric geometry” is an approach to geometry based on the notion of length on a topological space. This approach experienced a very fast development in the last few decades and penetrated into many other mathematical disciplines, such as group theory, dynamical systems, and partial differential equations. The objective of this graduate textbook is twofold: to give a detailed exposition of basic notions and techniques used in the theory of length spaces, and, more generally, to offer an elementary introduction into a broad variety of geometrical topics related to the notion of distance, including Riemannian and Carnot-Carathéodory metrics, the hyperbolic plane, distance-volume inequalities, asymptotic geometry (large scale, coarse), Gromov hyperbolic spaces, convergence of metric spaces, and Alexandrov spaces (non-positively and non-negatively curved spaces). The authors tend to work with “easy-to-touch” mathematical objects using “easy-to-visualize” methods. The authors set a challenging goal of making the core parts of the book accessible to first-year graduate students. Most new concepts and methods are introduced and illustrated using simplest cases and avoiding technicalities. The book contains many exercises, which form a vital part of the exposition.

Geometry and Dynamics in Gromov Hyperbolic Metric Spaces

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Author :
Publisher : American Mathematical Soc.
ISBN 13 : 1470434652
Total Pages : 281 pages
Book Rating : 4.4/5 (74 download)

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Book Synopsis Geometry and Dynamics in Gromov Hyperbolic Metric Spaces by : Tushar Das

Download or read book Geometry and Dynamics in Gromov Hyperbolic Metric Spaces written by Tushar Das and published by American Mathematical Soc.. This book was released on 2017-04-14 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the foundations of the theory of groups and semigroups acting isometrically on Gromov hyperbolic metric spaces. Particular emphasis is paid to the geometry of their limit sets and on behavior not found in the proper setting. The authors provide a number of examples of groups which exhibit a wide range of phenomena not to be found in the finite-dimensional theory. The book contains both introductory material to help beginners as well as new research results, and closes with a list of attractive unsolved problems.

Comparison Geometry

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Publisher : Cambridge University Press
ISBN 13 : 9780521592222
Total Pages : 280 pages
Book Rating : 4.5/5 (922 download)

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Book Synopsis Comparison Geometry by : Karsten Grove

Download or read book Comparison Geometry written by Karsten Grove and published by Cambridge University Press. This book was released on 1997-05-13 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an up to date work on a branch of Riemannian geometry called Comparison Geometry.