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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2410.08124 |
| Etiquetas: |
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Tabla de Contenidos:
- For typical properly ordered and minimal Bratteli diagrams $(B,\leq_r)$, it is shown that there are finitely many invariant distributions $\mathcal{D}_i$ which are the only obstructions to solving the cohomological equation $f = u-u\circ ϕ$ for the corresponding adic transformation $ϕ:X_B\rightarrow X_B$ and for $α$-Hölder $f$ with $α$ large enough. These invariant distributions are then used to define cyclic cocycles, a.k.a. traces $τ:K_0(\mathcal{A}_ϕ)\rightarrow \mathbb{R}$ for the crossed product algebra $\mathcal{A}_ϕ$.