Asymptotic Cyclic Cohomology
Author | : Michael Puschnigg |
Publisher | : Springer |
Total Pages | : 262 |
Release | : 2006-11-14 |
ISBN-10 | : 9783540495796 |
ISBN-13 | : 3540495797 |
Rating | : 4/5 (96 Downloads) |
Download or read book Asymptotic Cyclic Cohomology written by Michael Puschnigg and published by Springer. This book was released on 2006-11-14 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of cyclic cohomology theories is the approximation of K-theory by cohomology theories defined by natural chain complexes. The basic example is the approximation of topological K-theory by de Rham cohomology via the classical Chern character. A cyclic cohomology theory for operator algebras is developed in the book, based on Connes' work on noncommutative geometry. Asymptotic cyclic cohomology faithfully reflects the basic properties and features of operator K-theory. It thus becomes a natural target for a Chern character. The central result of the book is a general Grothendieck-Riemann-Roch theorem in noncommutative geometry with values in asymptotic cyclic homology. Besides this, the book contains numerous examples and calculations of asymptotic cyclic cohomology groups.