2 problems

Let $\Sigma$ be a Cantor set, meaning a compact, totally disconnected metric space without isolated points, and let $\mathbb{Z}^{n}$ act freely and minimally on $\Sigma$, with inva…

Let $\Lambda$ be the quasicrystal with transversal $\Omega_{trans}$, and let $\mathcal{A}_{\theta=0}$ be its twisted groupoid $C^*$-algebra for zero magnetic field. The trace induc…