Index Theory in Von Neumann Algebras

Index Theory in Von Neumann Algebras PDF Author: Catherine Louise Olsen
Publisher: American Mathematical Soc.
ISBN: 9780821860380
Category : Mathematics
Languages : en
Pages : 80

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Book Description
The object of this paper is to define a natural analytic index function on an arbitrary von Neumann algebra relative to an arbitrary ideal. This index map enables us to develop a complete Fredholm and semi-Fredholm theory in this setting which is parallel to classical Fredholm and semi-Fredholm theory.

Index Theory in Von Neumann Algebras

Index Theory in Von Neumann Algebras PDF Author: Catherine Louise Olsen
Publisher: American Mathematical Soc.
ISBN: 9780821860380
Category : Mathematics
Languages : en
Pages : 80

Get Book Here

Book Description
The object of this paper is to define a natural analytic index function on an arbitrary von Neumann algebra relative to an arbitrary ideal. This index map enables us to develop a complete Fredholm and semi-Fredholm theory in this setting which is parallel to classical Fredholm and semi-Fredholm theory.

Index Theory in Von Neumann Algebras

Index Theory in Von Neumann Algebras PDF Author: Catherine Louise Olsen
Publisher:
ISBN: 9781470407049
Category : Analytic functions
Languages : en
Pages : 71

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Book Description


Index Theory in von Neumann Algebras

Index Theory in von Neumann Algebras PDF Author: Catherine Louise Olsen
Publisher: American Mathematical Soc.
ISBN: 0821822950
Category : Analytic functions
Languages : en
Pages : 78

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Book Description
The object of this paper is to define a natural analytic index function on an arbitrary von Neumann algebra relative to an arbitrary ideal. This index map enables us to develop a complete Fredholm and semi-Fredholm theory in this setting which is parallel to classical Fredholm and semi-Fredholm theory.

Lectures on Von Neumann Algebras

Lectures on Von Neumann Algebras PDF Author: Serban Stratila
Publisher: Routledge
ISBN:
Category : Mathematics
Languages : en
Pages : 486

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Book Description


Finite Von Neumann Algebras and Masas

Finite Von Neumann Algebras and Masas PDF Author: Allan Sinclair
Publisher: Cambridge University Press
ISBN: 0521719194
Category : Mathematics
Languages : en
Pages : 411

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Book Description
The first book devoted to the general theory of finite von Neumann algebras.

Index Theory and Operator Algebras

Index Theory and Operator Algebras PDF Author: Jeffrey Stephen Fox
Publisher: American Mathematical Soc.
ISBN: 0821851527
Category : Mathematics
Languages : en
Pages : 202

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Book Description
This collection of papers by leading researchers provides a broad picture of current research directions in index theory. Based on lectures presented at the NSF-CBMS Regional Conference on $K$-Homology and Index Theory, held in August, 1991 at the University of Colorado at Boulder, the book provides both a careful exposition of new perspectives in classical index theory and an introduction to currently active areas of the field. Presented here are two new proofs of the classical Atiyah-Singer Index Theorem, as well as index theorems for manifolds with boundary and open manifolds. Index theory for semi-simple $p$-adic groups and the geometry of discrete groups are also discussed. Throughout the book, the application of operator algebras emerges as a central theme. Aimed at graduate students and researchers, this book is suitable as a text for an advanced graduate course on index theory.

Von Neumann Algebras

Von Neumann Algebras PDF Author: J. Dixmier
Publisher: Elsevier
ISBN: 0080960154
Category : Mathematics
Languages : en
Pages : 479

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Book Description
In this book, we study, under the name of von Neumann algebras, those algebras generally known as “rings of operators“ or “W*-algebras.“ The new terminology, suggested by J. Dieudonng, is fully justified from the historical point of view. Certain of the results are valid for more general algebras. We have, however systematically avoided this kind of generalization, except when it would facilitate the study of von Neumann algebras themselves. Parts I and I1 comprise those results which at present appear to’be the most useful for applications, although we do not embark on the study of those applications. Part 111, which is more technical, is primarily intended for specialists; it is virtually independent of Part 11.

Higher Index Theory

Higher Index Theory PDF 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.

Index Theory Beyond the Fredholm Case

Index Theory Beyond the Fredholm Case PDF Author: Alan Carey
Publisher: Springer Nature
ISBN: 3031194365
Category : Mathematics
Languages : en
Pages : 186

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Book Description
This book is about extending index theory to some examples where non-Fredholm operators arise. It focuses on one aspect of the problem of what replaces the notion of spectral flow and the Fredholm index when the operators in question have zero in their essential spectrum. Most work in this topic stems from the so-called Witten index that is discussed at length here. The new direction described in these notes is the introduction of `spectral flow beyond the Fredholm case'. Creating a coherent picture of numerous investigations and scattered notions of the past 50 years, this work carefully introduces spectral flow, the Witten index and the spectral shift function and describes their relationship. After the introduction, Chapter 2 carefully reviews Double Operator Integrals, Chapter 3 describes the class of so-called p-relative trace class perturbations, followed by the construction of Krein's spectral shift function in Chapter 4. Chapter 5 reviews the analytic approach to spectral flow, culminating in Chapter 6 in the main abstract result of the book, namely the so-called principal trace formula. Chapter 7 completes the work with illustrations of the main results using explicit computations on two examples: the Dirac operator in Rd, and a differential operator on an interval. Throughout, attention is paid to the history of the subject and earlier references are provided accordingly. The book is aimed at experts in index theory as well as newcomers to the field.

C*-Algebras and Operator Theory

C*-Algebras and Operator Theory PDF Author: Gerald J. Murphy
Publisher: Academic Press
ISBN: 0080924964
Category : Mathematics
Languages : en
Pages : 297

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Book Description
This book constitutes a first- or second-year graduate course in operator theory. It is a field that has great importance for other areas of mathematics and physics, such as algebraic topology, differential geometry, and quantum mechanics. It assumes a basic knowledge in functional analysis but no prior acquaintance with operator theory is required.