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FELL ALGEBRAS, GROUPOIDS, AND PROJECTIONS

Deeley, Robin J. ; Goffeng, Magnus LU and Yashinski, Allan (2022) In Proceedings of the American Mathematical Society 150(11). p.4891-4907
Abstract

Examples of Fell algebras with compact spectrum and trivial Dixmier-Douady invariant are constructed to illustrate differences with the case of continuous-trace Cāˆ—-algebras. At the level of the spectrum, this translates to only assuming the spectrum is locally Hausdorff (rather than Hausdorff). The existence of (full) projections is the fundamental question considered. The class of Fell algebras studied here arises naturally in the study of Wieler solenoids and applications to dynamical systems will be discussed in a separate paper.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Proceedings of the American Mathematical Society
volume
150
issue
11
pages
17 pages
publisher
American Mathematical Society (AMS)
external identifiers
  • scopus:85139537239
ISSN
0002-9939
DOI
10.1090/proc/16045
language
English
LU publication?
yes
id
844c3f14-de2a-49af-bf46-5888bcb14b53
date added to LUP
2022-12-09 15:09:10
date last changed
2022-12-09 15:09:10
@article{844c3f14-de2a-49af-bf46-5888bcb14b53,
  abstract     = {{<p>Examples of Fell algebras with compact spectrum and trivial Dixmier-Douady invariant are constructed to illustrate differences with the case of continuous-trace C<sup>āˆ—</sup>-algebras. At the level of the spectrum, this translates to only assuming the spectrum is locally Hausdorff (rather than Hausdorff). The existence of (full) projections is the fundamental question considered. The class of Fell algebras studied here arises naturally in the study of Wieler solenoids and applications to dynamical systems will be discussed in a separate paper.</p>}},
  author       = {{Deeley, Robin J. and Goffeng, Magnus and Yashinski, Allan}},
  issn         = {{0002-9939}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{11}},
  pages        = {{4891--4907}},
  publisher    = {{American Mathematical Society (AMS)}},
  series       = {{Proceedings of the American Mathematical Society}},
  title        = {{FELL ALGEBRAS, GROUPOIDS, AND PROJECTIONS}},
  url          = {{http://dx.doi.org/10.1090/proc/16045}},
  doi          = {{10.1090/proc/16045}},
  volume       = {{150}},
  year         = {{2022}},
}