Geometry of Manifolds with Non-negative Sectional Curvature

Geometry of Manifolds with Non-negative Sectional Curvature PDF Author: Owen Dearricott
Publisher: Springer
ISBN: 3319063731
Category : Mathematics
Languages : en
Pages : 196

Get Book

Book Description
Providing an up-to-date overview of the geometry of manifolds with non-negative sectional curvature, this volume gives a detailed account of the most recent research in the area. The lectures cover a wide range of topics such as general isometric group actions, circle actions on positively curved four manifolds, cohomogeneity one actions on Alexandrov spaces, isometric torus actions on Riemannian manifolds of maximal symmetry rank, n-Sasakian manifolds, isoparametric hypersurfaces in spheres, contact CR and CR submanifolds, Riemannian submersions and the Hopf conjecture with symmetry. Also included is an introduction to the theory of exterior differential systems.

Geometry of Manifolds with Non-negative Sectional Curvature

Geometry of Manifolds with Non-negative Sectional Curvature PDF Author: Owen Dearricott
Publisher: Springer
ISBN: 3319063731
Category : Mathematics
Languages : en
Pages : 196

Get Book

Book Description
Providing an up-to-date overview of the geometry of manifolds with non-negative sectional curvature, this volume gives a detailed account of the most recent research in the area. The lectures cover a wide range of topics such as general isometric group actions, circle actions on positively curved four manifolds, cohomogeneity one actions on Alexandrov spaces, isometric torus actions on Riemannian manifolds of maximal symmetry rank, n-Sasakian manifolds, isoparametric hypersurfaces in spheres, contact CR and CR submanifolds, Riemannian submersions and the Hopf conjecture with symmetry. Also included is an introduction to the theory of exterior differential systems.

Comparison Geometry

Comparison Geometry PDF Author: Karsten Grove
Publisher: Cambridge University Press
ISBN: 9780521592222
Category : Mathematics
Languages : en
Pages : 280

Get Book

Book Description
This is an up to date work on a branch of Riemannian geometry called Comparison Geometry.

The Geometry of Curvature Homogeneous Pseudo-Riemannian Manifolds

The Geometry of Curvature Homogeneous Pseudo-Riemannian Manifolds PDF Author: Peter B. Gilkey
Publisher: World Scientific
ISBN: 1860947859
Category : Science
Languages : en
Pages : 389

Get Book

Book Description
"Pseudo-Riemannian geometry is an active research field not only in differential geometry but also in mathematical physics where the higher signature geometries play a role in brane theory. An essential reference tool for research mathematicians and physicists, this book also serves as a useful introduction to students entering this active and rapidly growing field. The author presents a comprehensive treatment of several aspects of pseudo-Riemannian geometry, including the spectral geometry of the curvature tensor, curvature homogeneity, and Stanilov-Tsankov-Videv theory."--BOOK JACKET.

Comparison Theorems in Riemannian Geometry

Comparison Theorems in Riemannian Geometry PDF Author: Jeff Cheeger
Publisher: Newnes
ISBN: 0444107649
Category : Computers
Languages : en
Pages : 183

Get Book

Book Description
Comparison Theorems in Riemannian Geometry

Geometry of Manifolds

Geometry of Manifolds PDF Author: K. Shiohama
Publisher: Academic Press
ISBN:
Category : Mathematics
Languages : en
Pages : 544

Get Book

Book Description
This volume contains the papers presented at a special symposium organized to report on the increasing recent activities in differential geometry. The papers have been carefully reviewed by a panel of experts and pertain to the following areas of research: Dynamical Systems, Geometry of Submanifolds and Tensor Geometry, Lie Sphere Geometry, Riemannian Geometry, Yang-Mills Connections, and Geometry of the Laplace Operator.

Geometry of Manifolds

Geometry of Manifolds PDF Author:
Publisher: Academic Press
ISBN: 9780080873275
Category : Mathematics
Languages : en
Pages : 272

Get Book

Book Description
Geometry of Manifolds

Geometry of Nonpositively Curved Manifolds

Geometry of Nonpositively Curved Manifolds PDF Author: Patrick Eberlein
Publisher: University of Chicago Press
ISBN: 9780226181981
Category : Mathematics
Languages : en
Pages : 460

Get Book

Book Description
Starting from the foundations, the author presents an almost entirely self-contained treatment of differentiable spaces of nonpositive curvature, focusing on the symmetric spaces in which every geodesic lies in a flat Euclidean space of dimension at least two. The book builds to a discussion of the Mostow Rigidity Theorem and its generalizations, and concludes by exploring the relationship in nonpositively curved spaces between geometric and algebraic properties of the fundamental group. This introduction to the geometry of symmetric spaces of non-compact type will serve as an excellent guide for graduate students new to the material, and will also be a useful reference text for mathematicians already familiar with the subject.

The Geometry of Walker Manifolds

The Geometry of Walker Manifolds PDF Author: Peter Gilkey
Publisher: Morgan & Claypool Publishers
ISBN: 1598298208
Category : Technology & Engineering
Languages : en
Pages : 177

Get Book

Book Description
This book, which focuses on the study of curvature, is an introduction to various aspects of pseudo-Riemannian geometry. We shall use Walker manifolds (pseudo-Riemannian manifolds which admit a non-trivial parallel null plane field) to exemplify some of the main differences between the geometry of Riemannian manifolds and the geometry of pseudo-Riemannian manifolds and thereby illustrate phenomena in pseudo-Riemannian geometry that are quite different from those which occur in Riemannian geometry, i.e. for indefinite as opposed to positive definite metrics. Indefinite metrics are important in many diverse physical contexts: classical cosmological models (general relativity) and string theory to name but two. Walker manifolds appear naturally in numerous physical settings and provide examples of extremal mathematical situations as will be discussed presently. To describe the geometry of a pseudo-Riemannian manifold, one must first understand the curvature of the manifold. We shall analyze a wide variety of curvature properties and we shall derive both geometrical and topological results. Special attention will be paid to manifolds of dimension 3 as these are quite tractable. We then pass to the 4 dimensional setting as a gateway to higher dimensions. Since the book is aimed at a very general audience (and in particular to an advanced undergraduate or to a beginning graduate student), no more than a basic course in differential geometry is required in the way of background. To keep our treatment as self-contained as possible, we shall begin with two elementary chapters that provide an introduction to basic aspects of pseudo-Riemannian geometry before beginning on our study of Walker geometry. An extensive bibliography is provided for further reading. Math subject classifications : Primary: 53B20 -- (PACS: 02.40.Hw) Secondary: 32Q15, 51F25, 51P05, 53B30, 53C50, 53C80, 58A30, 83F05, 85A04 Table of Contents: Basic Algebraic Notions / Basic Geometrical Notions / Walker Structures / Three-Dimensional Lorentzian Walker Manifolds / Four-Dimensional Walker Manifolds / The Spectral Geometry of the Curvature Tensor / Hermitian Geometry / Special Walker Manifolds

Global Riemannian Geometry

Global Riemannian Geometry PDF Author: Thomas Willmore
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 226

Get Book

Book Description


Prescribing the Curvature of a Riemannian Manifold

Prescribing the Curvature of a Riemannian Manifold PDF Author: Jerry L. Kazdan
Publisher: American Mathematical Soc.
ISBN: 9780821889022
Category : Mathematics
Languages : en
Pages : 68

Get Book

Book Description
These notes were the basis for a series of ten lectures given in January 1984 at Polytechnic Institute of New York under the sponsorship of the Conference Board of the Mathematical Sciences and the National Science Foundation. The lectures were aimed at mathematicians who knew either some differential geometry or partial differential equations, although others could understand the lectures. Author's Summary:Given a Riemannian Manifold $(M,g)$ one can compute the sectional, Ricci, and scalar curvatures. In other special circumstances one also has mean curvatures, holomorphic curvatures, etc. The inverse problem is, given a candidate for some curvature, to determine if there is some metric $g$ with that as its curvature. One may also restrict ones attention to a special class of metrics, such as Kahler or conformal metrics, or those coming from an embedding. These problems lead one to (try to) solve nonlinear partial differential equations. However, there may be topological or analytic obstructions to solving these equations. A discussion of these problems thus requires a balanced understanding between various existence and non-existence results. The intent of this volume is to give an up-to-date survey of these questions, including enough background, so that the current research literature is accessible to mathematicians who are not necessarily experts in PDE or differential geometry. The intended audience is mathematicians and graduate students who know either PDE or differential geometry at roughly the level of an intermediate graduate course.