Bellissard, Jean V. and Marcolli, Matilde and Reihani, Kamran
(2010)
*Dynamical Systems on Spectral Metric Spaces.*
.
(Submitted)
http://resolver.caltech.edu/CaltechAUTHORS:20170712-092526227

PDF
- Submitted Version
See Usage Policy. 672Kb |

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20170712-092526227

## Abstract

Let (A,H,D) be a spectral triple, namely: A is a C^*-algebra, H is a Hilbert space on which A acts and D is a selfadjoint operator with compact resolvent such that the set of elements of A having a bounded commutator with D is dense. A spectral metric space, the noncommutative analog of a complete metric space, is a spectral triple (A,H,D) with additional properties which guaranty that the Connes metric induces the weak^*-topology on the state space of A. A ^*-automorphism respecting the metric defined a dynamical system. This article gives various answers to the question: is there a canonical spectral triple based upon the crossed product algebra Ax_αZ, characterizing the metric properties of the dynamical system ? If α is the noncommutative analog of an isometry the answer is yes. Otherwise, the metric bundle construction of Connes and Moscovici is used to replace (A,α) by an equivalent dynamical system acting isometrically. The difficulties relating to the non compactness of this new system are discussed. Applications, in number theory, in coding theory are given at the end.

Item Type: | Report or Paper (Discussion Paper) | ||||||||
---|---|---|---|---|---|---|---|---|---|

Related URLs: |
| ||||||||

Additional Information: | (Submitted on 26 Aug 2010) Work supported in part by NSF Grants No. 0901514, DMS-0651925 and DMS-1007207. | ||||||||

Funders: |
| ||||||||

Record Number: | CaltechAUTHORS:20170712-092526227 | ||||||||

Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20170712-092526227 | ||||||||

Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||

ID Code: | 79001 | ||||||||

Collection: | CaltechAUTHORS | ||||||||

Deposited By: | Ruth Sustaita | ||||||||

Deposited On: | 12 Jul 2017 16:38 | ||||||||

Last Modified: | 12 Jul 2017 16:38 |

Repository Staff Only: item control page