C*-algebras generated by representations of virtually nilpotent groups
Operator Algebras
2024-08-16 v2
Abstract
We show that a C*-algebra generated by an irreducible representation of a finitely generated virtually nilpotent group satisfies the universal coefficient theorem and has real rank 0. This combines with previous joint work with Gillaspy and McKenney to show these C*-algebras are classified by their Elliott invariants. When we further assume the group is nilpotent we build explicit Cartan subalgebras that are closely related to the group and representation, although the Cartan subalgebras are generally not C*-diagonals.
Keywords
Cite
@article{arxiv.2307.08841,
title = {C*-algebras generated by representations of virtually nilpotent groups},
author = {Caleb Eckhardt},
journal= {arXiv preprint arXiv:2307.08841},
year = {2024}
}
Comments
13 pages, v2 improves main theorem and adds examples, other minor changes