Simplicity of $\ast$-algebras of non-Hausdorff ${\mathbb{Z}}_2$-multispinal groupoids

C. Farsi, N. S. Larsen, J. Packer +1

We study simplicity of $C^{\ast }$-algebras arising from self-similar groups of ${\mathbb{Z}}_2$-multispinal type, a generalization of the Grigorchuk case whose simplicity was first proved…