Gauge-invariant ideal parametrizations from Dessi-Kakariadis and Bilich agree for proper product systems over Z_+^d, enabling a simplified full description of ideals in equivariant quotients of the Toeplitz-Nica-Pimsner algebra.
Frei,Relative Cuntz–Pimsner algebras: classification of gauge-equivariant representations: a simple and complete picture, preprint (available at arXiv:2301.03083)
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Gauge-invariant ideal structure of C*-algebras associated with proper product systems over $\mathbb{Z}_+^d$
Gauge-invariant ideal parametrizations from Dessi-Kakariadis and Bilich agree for proper product systems over Z_+^d, enabling a simplified full description of ideals in equivariant quotients of the Toeplitz-Nica-Pimsner algebra.