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arXiv · 2310.03387

Ideal structure of Nica-Toeplitz algebras

Boris Bilich
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Abstract

We study the gauge-invariant ideal structure of the Nica-Toeplitz algebra $\mathcal{NT}(X)$ of a product system $(A, X)$ over $\mathbb{N}^n$. We obtain a clear description of $X$-invariant ideals in $A$, that is, restrictions of gauge-invariant ideals in $\mathcal{NT}(X)$ to $A$. The main result is a classification of gauge-invariant ideals in $\mathcal{NT}(X)$ for a proper product system in terms of families of ideals in $A$. We also apply our results to higher-rank graphs.

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Boris Bilich. 2023-10-05. Ideal structure of Nica-Toeplitz algebras. https://arxiv.org/abs/2310.03387

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