Crossed Products Of Operator Algebras
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Author |
: Aidan Sims |
Publisher |
: Springer Nature |
Total Pages |
: 164 |
Release |
: 2020-06-22 |
ISBN-10 |
: 9783030397135 |
ISBN-13 |
: 3030397130 |
Rating |
: 4/5 (35 Downloads) |
Synopsis Operator Algebras and Dynamics: Groupoids, Crossed Products, and Rokhlin Dimension by : Aidan Sims
This book collects the notes of the lectures given at the Advanced Course on Crossed Products, Groupoids, and Rokhlin dimension, that took place at the Centre de Recerca Matemàtica (CRM) from March 13 to March 17, 2017. The notes consist of three series of lectures. The first one was given by Dana Williams (Dartmouth College), and served as an introduction to crossed products of C*-algebras and the study of their structure. The second series of lectures was delivered by Aidan Sims (Wollongong), who gave an overview of the theory of topological groupoids (as a model for groups and group actions) and groupoid C*-algebras, with particular emphasis on the case of étale groupoids. Finally, the last series was delivered by Gábor Szabó (Copenhagen), and consisted of an introduction to Rokhlin type properties (mostly centered around the work of Hirshberg, Winter and Zacharias) with hints to the more advanced theory related to groupoids.
Author |
: Elias G. Katsoulis |
Publisher |
: American Mathematical Soc. |
Total Pages |
: 100 |
Release |
: 2019-04-10 |
ISBN-10 |
: 9781470435455 |
ISBN-13 |
: 1470435454 |
Rating |
: 4/5 (55 Downloads) |
Synopsis Crossed Products of Operator Algebras by : Elias G. Katsoulis
The authors study crossed products of arbitrary operator algebras by locally compact groups of completely isometric automorphisms. They develop an abstract theory that allows for generalizations of many of the fundamental results from the selfadjoint theory to our context. They complement their generic results with the detailed study of many important special cases. In particular they study crossed products of tensor algebras, triangular AF algebras and various associated C -algebras. They make contributions to the study of C -envelopes, semisimplicity, the semi-Dirichlet property, Takai duality and the Hao-Ng isomorphism problem. They also answer questions from the pertinent literature.
Author |
: Dana P. Williams |
Publisher |
: American Mathematical Soc. |
Total Pages |
: 546 |
Release |
: 2007 |
ISBN-10 |
: 9780821842423 |
ISBN-13 |
: 0821842420 |
Rating |
: 4/5 (23 Downloads) |
Synopsis Crossed Products of $C^*$-Algebras by : Dana P. Williams
The theory of crossed products is extremely rich and intriguing. There are applications not only to operator algebras, but to subjects as varied as noncommutative geometry and mathematical physics. This book provides a detailed introduction to this vast subject suitable for graduate students and others whose research has contact with crossed product $C*$-algebras. in addition to providing the basic definitions and results, the main focus of this book is the fine ideal structure of crossed products as revealed by the study of induced representations via the Green-Mackey-Rieffel machine. in particular, there is an in-depth analysis of the imprimitivity theorems on which Rieffel's theory of induced representations and Morita equivalence of $C*$-algebras are based. There is also a detailed treatment of the generalized Effros-Hahn conjecture and its proof due to Gootman, Rosenberg, and Sauvageot. This book is meant to be self-contained and accessible to any graduate student coming out of a first course on operator algebras. There are appendices that deal with ancillary subjects, which while not central to the subject, are nevertheless crucial for a complete understanding of the material. Some of the appendices will be of independent interest. to view another book by this author, please visit Morita Equivalence and Continuous-Trace $C*$-Algebras.
Author |
: Şerban Strǎtilǎ |
Publisher |
: Cambridge University Press |
Total Pages |
: 461 |
Release |
: 2020-12-03 |
ISBN-10 |
: 9781108489607 |
ISBN-13 |
: 1108489605 |
Rating |
: 4/5 (07 Downloads) |
Synopsis Modular Theory in Operator Algebras by : Şerban Strǎtilǎ
Discusses the fundamentals and latest developments in operator algebras, focusing on continuous and discrete decomposition of factors of type III.
Author |
: Masamichi Takesaki |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 424 |
Release |
: 2012-12-06 |
ISBN-10 |
: 9781461261889 |
ISBN-13 |
: 1461261880 |
Rating |
: 4/5 (89 Downloads) |
Synopsis Theory of Operator Algebras I by : Masamichi Takesaki
Mathematics for infinite dimensional objects is becoming more and more important today both in theory and application. Rings of operators, renamed von Neumann algebras by J. Dixmier, were first introduced by J. von Neumann fifty years ago, 1929, in [254] with his grand aim of giving a sound founda tion to mathematical sciences of infinite nature. J. von Neumann and his collaborator F. J. Murray laid down the foundation for this new field of mathematics, operator algebras, in a series of papers, [240], [241], [242], [257] and [259], during the period of the 1930s and early in the 1940s. In the introduction to this series of investigations, they stated Their solution 1 {to the problems of understanding rings of operators) seems to be essential for the further advance of abstract operator theory in Hilbert space under several aspects. First, the formal calculus with operator-rings leads to them. Second, our attempts to generalize the theory of unitary group-representations essentially beyond their classical frame have always been blocked by the unsolved questions connected with these problems. Third, various aspects of the quantum mechanical formalism suggest strongly the elucidation of this subject. Fourth, the knowledge obtained in these investigations gives an approach to a class of abstract algebras without a finite basis, which seems to differ essentially from all types hitherto investigated. Since then there has appeared a large volume of literature, and a great deal of progress has been achieved by many mathematicians.
Author |
: Kenneth R. Davidson |
Publisher |
: American Mathematical Society, Fields Institute |
Total Pages |
: 325 |
Release |
: 2023-10-04 |
ISBN-10 |
: 9781470475086 |
ISBN-13 |
: 1470475081 |
Rating |
: 4/5 (86 Downloads) |
Synopsis C*-Algebras by Example by : Kenneth R. Davidson
The subject of C*-algebras received a dramatic revitalization in the 1970s by the introduction of topological methods through the work of Brown, Douglas, and Fillmore on extensions of C*-algebras and Elliott's use of $K$-theory to provide a useful classification of AF algebras. These results were the beginning of a marvelous new set of tools for analyzing concrete C*-algebras. This book is an introductory graduate level text which presents the basics of the subject through a detailed analysis of several important classes of C*-algebras. The development of operator algebras in the last twenty years has been based on a careful study of these special classes. While there are many books on C*-algebras and operator algebras available, this is the first one to attempt to explain the real examples that researchers use to test their hypotheses. Topics include AF algebras, Bunce–Deddens and Cuntz algebras, the Toeplitz algebra, irrational rotation algebras, group C*-algebras, discrete crossed products, abelian C*-algebras (spectral theory and approximate unitary equivalence) and extensions. It also introduces many modern concepts and results in the subject such as real rank zero algebras, topological stable rank, quasidiagonality, and various new constructions. These notes were compiled during the author's participation in the special year on C*-algebras at The Fields Institute for Research in Mathematical Sciences during the 1994–1995 academic year. The field of C*-algebras touches upon many other areas of mathematics such as group representations, dynamical systems, physics, $K$-theory, and topology. The variety of examples offered in this text expose the student to many of these connections. Graduate students with a solid course in functional analysis should be able to read this book. This should prepare them to read much of the current literature. This book is reasonably self-contained, and the author has provided results from other areas when necessary.
Author |
: Bruce Blackadar |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 347 |
Release |
: 2012-12-06 |
ISBN-10 |
: 9781461395720 |
ISBN-13 |
: 1461395720 |
Rating |
: 4/5 (20 Downloads) |
Synopsis K-Theory for Operator Algebras by : Bruce Blackadar
K -Theory has revolutionized the study of operator algebras in the last few years. As the primary component of the subject of "noncommutative topol ogy," K -theory has opened vast new vistas within the structure theory of C* algebras, as well as leading to profound and unexpected applications of opera tor algebras to problems in geometry and topology. As a result, many topolo gists and operator algebraists have feverishly begun trying to learn each others' subjects, and it appears certain that these two branches of mathematics have become deeply and permanently intertwined. Despite the fact that the whole subject is only about a decade old, operator K -theory has now reached a state of relative stability. While there will undoubtedly be many more revolutionary developments and applications in the future, it appears the basic theory has more or less reached a "final form." But because of the newness of the theory, there has so far been no comprehensive treatment of the subject. It is the ambitious goal of these notes to fill this gap. We will develop the K -theory of Banach algebras, the theory of extensions of C*-algebras, and the operator K -theory of Kasparov from scratch to its most advanced aspects. We will not treat applications in detail; however, we will outline the most striking of the applications to date in a section at the end, as well as mentioning others at suitable points in the text.
Author |
: Richard V. Kadison |
Publisher |
: American Mathematical Soc. |
Total Pages |
: 290 |
Release |
: 1998-01-13 |
ISBN-10 |
: 9780821894699 |
ISBN-13 |
: 0821894692 |
Rating |
: 4/5 (99 Downloads) |
Synopsis Fundamentals of the Theory of Operator Algebras. Volume III by : Richard V. Kadison
This volume is the companion volume to Fundamentals of the Theory of Operator Algebras. Volume I--Elementary Theory (Graduate Studies in Mathematics series, Volume 15). The goal of the text proper is to teach the subject and lead readers to where the vast literature--in the subject specifically and in its many applications--becomes accessible. The choice of material was made from among the fundamentals of what may be called the "classical" theory of operator algebras. This volume contains the written solutions to the exercises in the Fundamentals of the Theory of Operator Algebras. Volume I--Elementary Theory.
Author |
: Kenneth R. Davidson |
Publisher |
: American Mathematical Soc. |
Total Pages |
: 110 |
Release |
: 2017-04-25 |
ISBN-10 |
: 9781470423094 |
ISBN-13 |
: 147042309X |
Rating |
: 4/5 (94 Downloads) |
Synopsis Semicrossed Products of Operator Algebras by Semigroups by : Kenneth R. Davidson
The authors examine the semicrossed products of a semigroup action by -endomorphisms on a C*-algebra, or more generally of an action on an arbitrary operator algebra by completely contractive endomorphisms. The choice of allowable representations affects the corresponding universal algebra. The authors seek quite general conditions which will allow them to show that the C*-envelope of the semicrossed product is (a full corner of) a crossed product of an auxiliary C*-algebra by a group action. Their analysis concerns a case-by-case dilation theory on covariant pairs. In the process we determine the C*-envelope for various semicrossed products of (possibly nonselfadjoint) operator algebras by spanning cones and lattice-ordered abelian semigroups.
Author |
: Bruce Blackadar |
Publisher |
: Taylor & Francis |
Total Pages |
: 552 |
Release |
: 2006 |
ISBN-10 |
: 3540284869 |
ISBN-13 |
: 9783540284864 |
Rating |
: 4/5 (69 Downloads) |
Synopsis Operator Algebras by : Bruce Blackadar
This book offers a comprehensive introduction to the general theory of C*-algebras and von Neumann algebras. Beginning with the basics, the theory is developed through such topics as tensor products, nuclearity and exactness, crossed products, K-theory, and quasidiagonality. The presentation carefully and precisely explains the main features of each part of the theory of operator algebras; most important arguments are at least outlined and many are presented in full detail.