Author: John RoePublisher: American Mathematical Soc.
ISBN: 0821804138
Category : Mathematics
Languages : en
Pages : 114
Book Description
Lecture notes from the conference held Aug. 1995 in Boulder, Colo.
Index Theory, Coarse Geometry, and Topology of Manifolds
Author: John RoePublisher: American Mathematical Soc.
ISBN: 0821804138
Category : Mathematics
Languages : en
Pages : 114
Book Description
Lecture notes from the conference held Aug. 1995 in Boulder, Colo.
Coarse Cohomology and Index Theory on Complete Riemannian Manifolds
Author: John RoePublisher: American Mathematical Soc.
ISBN: 0821825593
Category : Mathematics
Languages : en
Pages : 106
Book Description
"July 1993, volume 104, number 497 (fourth of 6 numbers)."
Coarse Cohomology and Index Theory on Complete Riemannian Manifolds
Author: Both Professors of Maths John RoePublisher: Oxford University Press, USA
ISBN: 9781470400743
Category : MATHEMATICS
Languages : en
Pages : 106
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.
Lectures on Coarse Geometry
Author: John RoePublisher: American Mathematical Soc.
ISBN: 0821833324
Category : Mathematics
Languages : en
Pages : 184
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.
Coarse Geometry of Topological Groups
Author: Christian RosendalPublisher: Cambridge University Press
ISBN: 110884247X
Category : Mathematics
Languages : en
Pages : 309
Book Description
Provides a general framework for doing geometric group theory for non-locally-compact topological groups arising in mathematical practice.
Lectures on Coarse Geometry
Author: John RoePublisher: American Mathematical Soc.
ISBN: 9781470421762
Category : Mathematics
Languages : en
Pages : 175
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 famous rigidity 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. The middle 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 and direct, 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, Coarse Geometry, and Topology of Manifolds"".
Higher Index Theory
Author: Rufus WillettPublisher: Cambridge University Press
ISBN: 1108853110
Category : Mathematics
Languages : en
Pages : 595
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.
Relative Index Theory, Determinants And Torsion For Open Manifolds
Author: Jurgen EichhornPublisher: World Scientific
ISBN: 9814474223
Category : Mathematics
Languages : en
Pages : 353
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.
Lectures on the Geometry of Manifolds
Author: Liviu I. NicolaescuPublisher: World Scientific
ISBN: 9812708537
Category : Mathematics
Languages : en
Pages : 606
Book Description
The goal of this book is to introduce the reader to some of the most frequently used techniques in modern global geometry. Suited to the beginning graduate student willing to specialize in this very challenging field, the necessary prerequisite is a good knowledge of several variables calculus, linear algebra and point-set topology.The book's guiding philosophy is, in the words of Newton, that ?in learning the sciences examples are of more use than precepts?. We support all the new concepts by examples and, whenever possible, we tried to present several facets of the same issue.While we present most of the local aspects of classical differential geometry, the book has a ?global and analytical bias?. We develop many algebraic-topological techniques in the special context of smooth manifolds such as Poincar‚ duality, Thom isomorphism, intersection theory, characteristic classes and the Gauss-;Bonnet theorem.We devoted quite a substantial part of the book to describing the analytic techniques which have played an increasingly important role during the past decades. Thus, the last part of the book discusses elliptic equations, including elliptic Lpand H”lder estimates, Fredholm theory, spectral theory, Hodge theory, and applications of these. The last chapter is an in-depth investigation of a very special, but fundamental class of elliptic operators, namely, the Dirac type operators.The second edition has many new examples and exercises, and an entirely new chapter on classical integral geometry where we describe some mathematical gems which, undeservedly, seem to have disappeared from the contemporary mathematical limelight.
Noncommutative Geometry And Physics 3 - Proceedings Of The Noncommutative Geometry And Physics 2008, On K-theory And D-branes & Proceedings Of The Rims Thematic Year 2010 On Perspectives In Deformation Quantization And Noncommutative Geometry
Author: Giuseppe DitoPublisher: World Scientific
ISBN: 9814425028
Category : Mathematics
Languages : en
Pages : 537
Book Description
Noncommutative differential geometry is a novel approach to geometry, aimed in part at applications in physics. It was founded in the early eighties by the 1982 Fields Medalist Alain Connes on the basis of his fundamental works in operator algebras. It is now a very active branch of mathematics with actual and potential applications to a variety of domains in physics ranging from solid state to quantization of gravity. The strategy is to formulate usual differential geometry in a somewhat unusual manner, using in particular operator algebras and related concepts, so as to be able to plug in noncommutativity in a natural way. Algebraic tools such as K-theory and cyclic cohomology and homology play an important role in this field. It is an important topic both for mathematics and physics.