C?-algebras of extensions of groupoids by group bundles
نویسندگان
چکیده
Given a normal subgroup bundle A of the isotropy groupoid ?, we obtain twisted action quotient ?/A on group C?-algebras determined by whose crossed product recovers C?-algebra C?(?). Restricting to case where is abelian, describe C?(?) as associated T-groupoid over tranformation obtained from canonical Pontryagin dual space A. We give some illustrative examples this result.
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ژورنال
عنوان ژورنال: Journal of Functional Analysis
سال: 2021
ISSN: ['0022-1236', '1096-0783']
DOI: https://doi.org/10.1016/j.jfa.2020.108892