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Author: John Roe
Publisher: American Mathematical Soc.
ISBN: 0821804138
Category : Mathematics
Languages : en
Pages : 114
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Book Description
Lecture notes from the conference held Aug. 1995 in Boulder, Colo.
Author: John Roe
Publisher: American Mathematical Soc.
ISBN: 0821804138
Category : Mathematics
Languages : en
Pages : 114
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Book Description
Lecture notes from the conference held Aug. 1995 in Boulder, Colo.
Author: John Roe
Publisher: American Mathematical Soc.
ISBN: 0821825593
Category : Mathematics
Languages : en
Pages : 106
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Book Description
"July 1993, volume 104, number 497 (fourth of 6 numbers)."
Author: Both Professors of Maths John Roe
Publisher: Oxford University Press, USA
ISBN: 9781470400743
Category : MATHEMATICS
Languages : en
Pages : 106
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Book Description
Coarse geometry'' is the study of metric spaces from the asymptotic point of view: two metric spaces (such as the integers and the real numbers) which look the same from a great distance'' are considered to be equivalent. This book develops a cohomology theory appropriate to coarse geometry. The theory is then used to construct higher indices'' for elliptic operators on noncompact complete Riemannian manifolds. Such an elliptic operator has an index in the $K$-theory of a certain operator algebra naturally associated to the coarse structure, and this $K$-theory then pairs with the coarse cohomology. The higher indices can be calculated in topological terms thanks to the work of Connes and Moscovici. They can also be interpreted in terms of the $K$-homology of an ideal boundary naturally associated to the coarse structure. Applications to geometry are given, and the book concludes with a discussion of the coarse analog of the Novikov conjecture.
Author: John Roe
Publisher: American Mathematical Soc.
ISBN: 0821833324
Category : Mathematics
Languages : en
Pages : 184
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Book Description
Coarse geometry is the study of spaces (particularly metric spaces) from a 'large scale' point of view, so that two spaces that look the same from a great distance are actually equivalent. This book provides a general perspective on coarse structures. It discusses results on asymptotic dimension and uniform embeddings into Hilbert space.
Author: Christian Rosendal
Publisher: Cambridge University Press
ISBN: 110884247X
Category : Mathematics
Languages : en
Pages : 309
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Book Description
Provides a general framework for doing geometric group theory for non-locally-compact topological groups arising in mathematical practice.
Author: John Roe
Publisher: American Mathematical Soc.
ISBN: 9780821882887
Category : Mathematics
Languages : en
Pages : 190
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Book Description
Coarse geometry is the study of spaces (particularly metric spaces) from a ''large scale'' point of view, so that two spaces that look the same from a great distance are actually equivalent. This point of view is effective because it is often true that the relevant geometric properties of metric spaces are determined by their coarse geometry. Two examples of important uses of coarse geometry are Gromov's beautiful notion of a hyperbolic group and Mostow's proof of his famousrigidity theorem. The first few chapters of the book provide a general perspective on coarse structures. Even when only metric coarse structures are in view, the abstract framework brings the same simplification as does the passage from epsilons and deltas to open sets when speaking of continuity. Themiddle section of the book reviews notions of negative curvature and rigidity. Modern interest in large scale geometry derives in large part from Mostow's rigidity theorem and from Gromov's subsequent ''large scale'' rendition of the crucial properties of negatively curved spaces. The final chapters discuss recent results on asymptotic dimension and uniform embeddings into Hilbert space. John Roe is known for his work on index theory, coarse geometry, and topology. His exposition is clear anddirect, bringing insight to this modern field of mathematics. Students and researchers who wish to learn about contemporary methods of understanding the geometry and topology of manifolds will be well served by reading this book. Also available from the AMS by John Roe is Index Theory, CoarseGeometry, and Topology of Manifolds.
Author: Jesús A. Álvarez López
Publisher: Springer
ISBN: 3319941321
Category : Mathematics
Languages : en
Pages : 173
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Book Description
This book provides a detailed introduction to the coarse quasi-isometry of leaves of a foliated space and describes the cases where the generic leaves have the same quasi-isometric invariants. Every leaf of a compact foliated space has an induced coarse quasi-isometry type, represented by the coarse metric defined by the length of plaque chains given by any finite foliated atlas. When there are dense leaves either all dense leaves without holonomy are uniformly coarsely quasi-isometric to each other, or else every leaf is coarsely quasi-isometric to just meagerly many other leaves. Moreover, if all leaves are dense, the first alternative is characterized by a condition on the leaves called coarse quasi-symmetry. Similar results are proved for more specific coarse invariants, like growth type, asymptotic dimension, and amenability. The Higson corona of the leaves is also studied. All the results are richly illustrated with examples. The book is primarily aimed at researchers on foliated spaces. More generally, specialists in geometric analysis, topological dynamics, or metric geometry may also benefit from it.
Author: Rufus Willett
Publisher: Cambridge University Press
ISBN: 1108853110
Category : Mathematics
Languages : en
Pages : 595
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Book Description
Index theory studies the solutions to differential equations on geometric spaces, their relation to the underlying geometry and topology, and applications to physics. If the space of solutions is infinite dimensional, it becomes necessary to generalise the classical Fredholm index using tools from the K-theory of operator algebras. This leads to higher index theory, a rapidly developing subject with connections to noncommutative geometry, large-scale geometry, manifold topology and geometry, and operator algebras. Aimed at geometers, topologists and operator algebraists, this book takes a friendly and concrete approach to this exciting theory, focusing on the main conjectures in the area and their applications outside of it. A well-balanced combination of detailed introductory material (with exercises), cutting-edge developments and references to the wider literature make this a valuable guide to this active area for graduate students and experts alike.
Author: Jrgen Eichhorn
Publisher: World Scientific
ISBN: 981277145X
Category : Mathematics
Languages : en
Pages : 353
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Book Description
For closed manifolds, there is a highly elaborated theory of number-valued invariants, attached to the underlying manifold, structures and differential operators. On open manifolds, nearly all of this fails, with the exception of some special classes. The goal of this monograph is to establish for open manifolds, structures and differential operators an applicable theory of number-valued relative invariants. This is of great use in the theory of moduli spaces for nonlinear partial differential equations and mathematical physics. The book is self-contained: in particular, it contains an outline of the necessary tools from nonlinear Sobolev analysis.
Author:
Publisher:
ISBN: 9814474223
Category :
Languages : en
Pages :
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